₦airaland Forum

Brinxs:
I'm not in Abuja, however the scan after the last work showed that cylinder 1 is misfiring...the electrician said the issue is from the top cylinder.

Carry out compression tests on all cylinders and post the results here.

haykay2005:
Please, my 2006 Honda Civic currently shows a long-term fuel trim of -21. After resolving codes (P2185, P2413) by replacing the coolant temperature sensor and the EGR valve which I initially thought were the cause, the fuel trim has not improved. Additional information: the MAF sensor is reading around 4.2 4.6 g/s at idle with the gear in ‘P.’
Can replacing the air-flow sensor make any difference? There’s no check-engine light.


Pls help. This is so frustrating

First check for any exhaust leak before the upstream oxygen sensor. It is cheap and easy to confirm.

Inspect the front oxygen or air fuel ratio sensor even if there is no check engine light. On high mileage Hondas, this sensor often causes fuel trim problems.

Carry out a fuel pressure test. If the pressure is too high, that is likely the cause.

Check for leaking injectors. You can do an injector balance test, or let the car sit overnight and see if any cylinder is flooded when you start it in the morning

Brinxs:
My car is a Toyota highlander, 2010. Its been misfiring with check engine light blinking. I have changed the 6 plugs and 6 nuzzles yet its still misfiring... what could be the cause??

This require a physical diagnosis by a good technician
Do cylinder pressure test
Check if the ECU is supplying current.
Since you change the plugs and coils the might be coming from the valves.
Sticking valves.

Good day. The 4wd sign on the dashboard of 2007 4Runner is constantly on. How can it be cleared. Someone said that the 4WD is stocked on H2. How can It be rectified? All the buttons needed to be pressed have been pressed yet not cleared out.

Good day. The 4wd sign on the dashboard of 2007 4Runner is constantly on. How can it be cleared. Someone said that the 4WDis stocked on H2. How can It be rectified?. All the buttons that needed to be pressed have been pressed, still the same. Attached is the sign on the dashboard.

Godsown2024:
Good day. The 4wd sign on the dashboard of 2007 4Runner is constantly on. How can it be cleared. Someone said that the 4WDis stocked on H2. How can It be rectified?. All the buttons that needed to be pressed have been pressed, still the same. Attached is the sign on the dashboard.

Good day.

When the 4WD light stays ON on a 2007 Toyota 4Runner and the system refuses to shift out of H2, it simply means the 4WD actuator or position sensor is not responding, so the 4WD ECU has locked the system in its last known safe position.

Below is the correct breakdown:

⸻

1️⃣ Why the 4WD Light Is Constantly ON
• Transfer case actuator stuck (most common on 4Runner/Prado/FJ).
• 4WD position switch not giving feedback, so the ECU can’t confirm the mode.
• Actuator not used for months → internal gears jam.
• Weak battery or dirty ground affecting actuator voltage.
• Wiring/connector issues under the vehicle.

⸻

2️⃣ How to Fix It Properly

✔️ Step 1: Scan the 4WD/Chassis module
A normal OBD scanner won’t read this. You need a scanner that can read 4WD ECU.
This shows the exact actuator or sensor that failed.

✔️ Step 2: Inspect transfer case actuator
Check if the actuator motor is stuck or the connector is corroded.

✔️ Step 3: Try actuator re-synchronization
Cycle: H2 → H4 → L4
(Engine ON, gear in N, foot on brake).
If it doesn’t move, the motor is locked.

✔️ Step 4: Service or replace the actuator
If servicing (cleaning + gear re-alignment) doesn’t restore it, replace the unit.

✔️ Clear 4WD codes with scan tool → light goes off.

⸻

⚙️ Ryan Automotive Workshop Professional Take

We fix this often on 4Runner, Prado 120, GX470 and Hilux.
In most cases, the transfer case actuator is stuck and needs servicing.
Once we correct it, the 4WD light clears immediately and the system shifts normally again.

You can refer the vehicle to us — we’ll diagnose and fix it properly.

⸻

Ryan Automotive Limited
Precision. Transparency. Excellence.
Professional Auto Diagnostics • Engine & Transmission Experts • Genuine Parts & Cooling Division
📍 Lagos, Nigeria
Ryan Automotive Workshop Division

Great. Thanks for the prompt response. Where is your garage and contact number pls. Like how much will it cost. Thanks

RyanAutomotive:
Good day.

When the 4WD light stays ON on a 2007 Toyota 4Runner and the system refuses to shift out of H2, it simply means the 4WD actuator or position sensor is not responding, so the 4WD ECU has locked the system in its last known safe position.

Below is the correct breakdown:

⸻

1️⃣ Why the 4WD Light Is Constantly ON
• Transfer case actuator stuck (most common on 4Runner/Prado/FJ).
• 4WD position switch not giving feedback, so the ECU can’t confirm the mode.
• Actuator not used for months → internal gears jam.
• Weak battery or dirty ground affecting actuator voltage.
• Wiring/connector issues under the vehicle.

⸻

2️⃣ How to Fix It Properly

✔️ Step 1: Scan the 4WD/Chassis module
A normal OBD scanner won’t read this. You need a scanner that can read 4WD ECU.
This shows the exact actuator or sensor that failed.

✔️ Step 2: Inspect transfer case actuator
Check if the actuator motor is stuck or the connector is corroded.

✔️ Step 3: Try actuator re-synchronization
Cycle: H2 → H4 → L4
(Engine ON, gear in N, foot on brake).
If it doesn’t move, the motor is locked.

✔️ Step 4: Service or replace the actuator
If servicing (cleaning + gear re-alignment) doesn’t restore it, replace the unit.

✔️ Clear 4WD codes with scan tool → light goes off.

⸻

⚙️ Ryan Automotive Workshop Professional Take

We fix this often on 4Runner, Prado 120, GX470 and Hilux.
In most cases, the transfer case actuator is stuck and needs servicing.
Once we correct it, the 4WD light clears immediately and the system shifts normally again.

You can refer the vehicle to us — we’ll diagnose and fix it properly.

⸻

Ryan Automotive Limited
Precision. Transparency. Excellence.
Professional Auto Diagnostics • Engine & Transmission Experts • Genuine Parts & Cooling Division
📍 Lagos, Nigeria
Ryan Automotive Workshop Division

Godsown2024:
Great. Thanks for the prompt response. Where is your garage and contact number pls. Like how much will it cost. Thanks

Thank you for the feedback.

For pricing and a proper booking slot, kindly send us a DM so we can guide you based on the exact symptoms your 4Runner is showing.
We don’t discuss repair costs publicly to avoid giving inaccurate or generic figures — every 4WD case is different depending on the actuator condition.

You can reach us directly through DM and we’ll attend to you immediately.
Check the signature line below
⸻

Ryan Automotive Limited
Precision. Transparency. Excellence.
Professional Auto Diagnostics • Engine & Transmission Experts • Genuine Parts & Cooling Division
📍 Lagos, Nigeria
Ryan Automotive Workshop Division

Cutezt:
My car has been giving me nightmares for the last 3 days now. I drove it to church on Sunday, it was moving very well, no problem at all, the only code prior was the camshaft sensor code which I planned to change sometime next month when I go to the mainland, so after getting to church, parked and after service, I came to the car tried starting, it refused to start, noticed the battery went completely flat as there were no lights on the dashboard, so I decided to try another battery but it still didn't start up, it was cranking but never starts, it just cranks and the stops like something is holding the pulley back, so I just parked it in church and returned the next day with a mechanic who checked everything and said he couldn't find a problem, we called a rewire who checked and found no problem too, he checked the dashboard and discovered the key light wasn't going off, it kept blinking, he suggested we called key programmers and they came and did their thing, key blinking light went away, but still no start, until he decided to check the ECU and that was when he discovered that the AC water exit hose was blocked and was draining water into the ECU, wahala!

The brainbox was literally filled with water when it was removed, it was cleaned with clutch cleaner but it didn't work, so we got another ECU hoping it's gonna work, after programming and all, car still refused to start, rewire checked the coils and found one bad cool, we replaced it, started the car again and it still refused to start, checked all fuses, everything was working fine, at this point, I Don taya, it has actually never given me this level of problems before, it has never stopped me on the road, so this one is kinda strange, please does anyone have a suggestion?

It's an 06 accord.

Good evening house, just to give updates on this.

After bringing on various island rewires, (I call them 'make i chop') they were all not able to detect what the problem was, in fact, one of them removed my oil dipstick and we found out there was almost no oil inside the engine anymore, which wasn't so cos I had enough oil that morning before I left the house, so I told him we can buy oil but he said a lack of oil shouldn't stop the car from starting, anyways, back to my story, I finally decided to get my regular rewire guy at oyingbo, but this guy na big guy, I knew it was going to take a good amount of money to bring him here himself, so I just asked him to send one of his boys whom I know. The werey brought another brain box, put it and programmed it but car was still refusing to start, he tried and tried and finally gave up, saying the brainbox they gave him was fault and he was going to change it and come back the next day, ever since, when I call am, e no dey pick call again o, I will call his oga, he will say the guy no dey gree pick him call too or stay shop, he sha finally sent another rewire who came and in less than 15 minutes, figured out that the MAP and speed sensors were bad, after changing the brainbox and programing, the car still refused to start, at that point, I was tired already, after about 30 minutes of changing plugs, he finally opened up the engine dipstick and it there was no oil, he smelled it and it was smelling like fuel, that was when he said his job was done, that what was remaining was for a mechanic to drain the engine cos it was now filled with fuel as the spoilt brainbox opened up the injector so there was a free flow of fuel into the engine, so the car can't start. He said the rewire that came first doesn't know his job cos the first thing to do to a car with a bad brainbox is to stop fuel from getting into the engine. I called my mechanic, and he came and drained approximately 10 liters or more of fuel from the engine and we put a new oil, kicked the car while pressing the accelerator, it took about 15 minutes but the car finally started, it now works, after a whole week of trying.

He advised I change the oil after a few weeks so the engine can function better, he said for the next few days, the engine will be misbehaving until all the fuel inside goes out.

Thanks house for the suggestions.

If you have been deliberating on receiving service for a wheel alignment, it is advisable a good idea to get one done now. When the wheels are not properly aligned, they will wear on the tires and impact fuel efficiency which is not advisable. I had a friend that had their car checked out and was adamant that Usman Autos and Services LTD performed the proper alignment of the vehicle and took the time to thoroughly explain everything. This helped to understand the importance of a proper wheel alignment. In addition, I observed that having your wheels aligned periodically will enhance the total driving experience the steering was greatly improved and the tires will last longer. I thought I would add that while getting the tires and alignment checked it's also a nice opportunity to check for any small problems of parts, in total the vehicle is well maintained.

Good afternoon to all the car Gurus here.

I drive a 2008 honda (evil spirit 2 doors) and the current issue is that the car is not moving well on a high terrain. It does the same while on reverse gear. When I try to forcefully accelerate, the engine will want to go off. My mechanic advised that I should change the gear and I did. Unfortunately, the problem still persists after the gear replacement.

What could be the problem my dear gurus in the house

mayorrlad:
Good afternoon to all the car Gurus here.

I drive a 2008 honda (evil spirit 2 doors) and the current issue is that the car is not moving well on a high terrain. It does the same while on reverse gear. When I try to forcefully accelerate, the engine will want to go off. My mechanic advised that I should change the gear and I did. Unfortunately, the problem still persists after the gear replacement.

What could be the problem my dear gurus in the house

Good afternoon, fellow car enthusiasts.

Thank you for sharing the detailed description of your 2008 Honda “Evil Spirit” 2-door issue. From what you’ve described, the car struggles to move on inclines in both forward and reverse, and the engine tends to stall when you try to accelerate. You also mentioned that the gear was replaced, but the problem persists — which suggests the issue is not limited to the gear itself.

⸻

🔧 Possible Causes & What to Check
1. Clutch / Transmission Issue
• Even with a new gear, if the clutch is slipping or the torque converter (for automatic) is weak, the car won’t transfer power efficiently uphill.
• Signs: Slipping when accelerating, engine revs rising without speed, strange noises, or burning smell.
• Solution: Inspect clutch plates, pressure plate, and release bearing (manual), or torque converter and transmission fluid (automatic).
2. Fuel Delivery Problems
• A weak fuel pump, clogged fuel filter, or dirty throttle body can cause the engine to stall under load.
• Signs: Hesitation on acceleration, stalling on incline, rough idling.
• Solution: Check fuel pump pressure, replace the fuel filter if old, clean throttle body and intake system.
3. Ignition or Sensor Faults
• Faulty sensors like the MAF (Mass Airflow), oxygen sensor, or worn spark plugs can cause poor engine response, especially under load.
• Signs: Engine stalls or hesitates when trying to accelerate uphill, uneven power delivery.
• Solution: Run a full diagnostic scan, replace any faulty sensors, and ensure spark plugs are in good condition.

⸻

⚙️ Why This Happens

From our experience, many Hondas of this age with similar symptoms don’t fix the problem with gear replacement alone. Often, it’s a combination of clutch load issues and fuel delivery under stress. Ignoring this may lead to further engine strain or transmission damage.

⸻

✅ Recommended Next Step

For accurate diagnosis and repair, it’s best to have a full inspection done by professionals rather than replacing parts randomly. If you’re in Lagos or can arrange it, our team at Ryan Automotive Limited specializes in this kind of Honda issue. We can:
• Diagnose the exact cause using modern diagnostic tools.
• Test the clutch/torque converter and fuel system under load.
• Provide precise repair solutions to fix the problem permanently.

You can reach us via DM, WhatsApp, or email, and we’ll guide you step by step to get your car performing perfectly again.

⸻

Ryan Automotive Limited
Precision. Transparency. Excellence.
Professional Auto Diagnostics • Engine & Transmission Experts • Genuine Parts & Cooling Division
Lagos, Nigeria
Contact via profile/signature
Ryan Automotive Workshop Division

P0016
2007 Mazda 6

kenmaro:
P0016
2007 Mazda 6

Good day boss,
Let’s break down Mazda 6 – Error Code P0016 in a clear, professional way.

⸻

🔧 TECHNICAL BREAKDOWN (DIAGNOSTIC INSIGHT)

1️⃣ What P0016 Means

P0016 — Crankshaft Position (CKP) – Camshaft Position (CMP) Correlation Bank 1
This means the engine control module has detected that the camshaft timing and crankshaft timing are no longer aligned.

In simple terms:
Your engine timing is off — and Mazda does not play with this code at all.

⸻

2️⃣ Causes (Ranked by Probability Based on Mazda 6 Behavior)

A. Stretched / Slack Timing Chain (Most Common)

Mazda 2.0 & 2.3 engines are known for:
• timing chain stretch
• worn tensioner
• loose guides
This causes the cam and crank signals to fall out of sync.

B. Faulty Timing Chain Tensioner

If the tensioner can no longer maintain pressure:
• chain becomes loose
• timing drifts
• P0016 appears
• engine becomes noisy on cold start

C. VVT (Variable Valve Timing) Actuator Failure

Mazda VVT actuators sometimes get stuck or fail internally.
This directly triggers P0016.

D. Bad Camshaft or Crankshaft Position Sensor

A failing sensor can:
• send wrong readings
• cause wrong correlation between cam & crank
But sensor failure is LESS common than timing issues.

E. Dirty or Low Engine Oil Affecting VVT Operation

Mazda VVT system depends heavily on oil pressure.
Low oil, dirty oil, or wrong viscosity can trigger P0016.

⸻

3️⃣ Symptoms You May Notice
• Rough idle
• Hard starting
• Engine shaking
• Rattling sound on first startup
• Reduced acceleration
• Check-engine light ON
• Poor fuel economy

⸻

4️⃣ The Correct Fix (Proper Mazda Method — NOT Guessing)

✔️ Step 1 — Full Timing Diagnosis

At Ryan Automotive we confirm:
• Crankshaft and camshaft angle using the scanner
• VVT advance/retard values
• Timing chain slack
• Tensioner pressure
• Oil pressure

This removes guesswork completely.

✔️ Step 2 — Repair Based on Actual Findings

If chain is stretched or guides worn:

➡️ Replace timing chain kit (chain + tensioner + guides)

If VVT actuator is sticking:

➡️ Replace VVT actuator

If oil pressure is low:

➡️ Fix oil pump or internal oil flow restriction

If sensor is bad:

➡️ Replace the faulty CKP/CMP sensor

We only replace sensors after confirming they’re the actual cause.

⸻

⚙️ RYAN AUTOMOTIVE WORKSHOP — PROFESSIONAL TAKE

We’ve solved P0016 on multiple Mazda 6 units (2.0 & 2.3) and the root cause is almost always:
• stretched timing chain,
• weak tensioner, or
• faulty VVT actuator.

Mazda engines are extremely sensitive to timing accuracy.
Once P0016 sets, the timing is already out of spec and the car should not be driven long like that.

After timing correction, the engine returns to:
• smooth idle
• sharp acceleration
• zero check-engine light
• normal fuel economy

We handle this cleanly, with proper alignment tools and measuring methods — not guesswork.

⸻

🧾 PROFESSIONAL SUMMARY

P0016 on a Mazda 6 (2007) means timing mismatch between the crankshaft and camshaft.
The most common cause is timing chain stretch or tensioner failure, followed by VVT issues.

A proper diagnostic is required to confirm the exact failure before opening or replacing anything.

Bring it in for full evaluation so we fix it once — correctly.

⸻

Ryan Automotive Limited

Precision. Transparency. Excellence.
Professional Auto Diagnostics • Engine & Transmission Experts • Genuine Parts & Cooling Division
📍 Lagos, Nigeria
📞 Contact via profile/signature
Ryan Automotive Workshop Division

Thanks for your response. If you can guarantee your technical strength at resolving this P0016, I wouldn't mind giving you a try. Kindly share your address and contact numbers.

RyanAutomotive:
Good day boss,
Let’s break down Mazda 6 – Error Code P0016 in a clear, professional way.

⸻

🔧 TECHNICAL BREAKDOWN (DIAGNOSTIC INSIGHT)

1️⃣ What P0016 Means

P0016 — Crankshaft Position (CKP) – Camshaft Position (CMP) Correlation Bank 1
This means the engine control module has detected that the camshaft timing and crankshaft timing are no longer aligned.

In simple terms:
Your engine timing is off — and Mazda does not play with this code at all.

⸻

2️⃣ Causes (Ranked by Probability Based on Mazda 6 Behavior)

A. Stretched / Slack Timing Chain (Most Common)

Mazda 2.0 & 2.3 engines are known for:
• timing chain stretch
• worn tensioner
• loose guides
This causes the cam and crank signals to fall out of sync.

B. Faulty Timing Chain Tensioner

If the tensioner can no longer maintain pressure:
• chain becomes loose
• timing drifts
• P0016 appears
• engine becomes noisy on cold start

C. VVT (Variable Valve Timing) Actuator Failure

Mazda VVT actuators sometimes get stuck or fail internally.
This directly triggers P0016.

D. Bad Camshaft or Crankshaft Position Sensor

A failing sensor can:
• send wrong readings
• cause wrong correlation between cam & crank
But sensor failure is LESS common than timing issues.

E. Dirty or Low Engine Oil Affecting VVT Operation

Mazda VVT system depends heavily on oil pressure.
Low oil, dirty oil, or wrong viscosity can trigger P0016.

⸻

3️⃣ Symptoms You May Notice
• Rough idle
• Hard starting
• Engine shaking
• Rattling sound on first startup
• Reduced acceleration
• Check-engine light ON
• Poor fuel economy

⸻

4️⃣ The Correct Fix (Proper Mazda Method — NOT Guessing)

✔️ Step 1 — Full Timing Diagnosis

At Ryan Automotive we confirm:
• Crankshaft and camshaft angle using the scanner
• VVT advance/retard values
• Timing chain slack
• Tensioner pressure
• Oil pressure

This removes guesswork completely.

✔️ Step 2 — Repair Based on Actual Findings

If chain is stretched or guides worn:

➡️ Replace timing chain kit (chain + tensioner + guides)

If VVT actuator is sticking:

➡️ Replace VVT actuator

If oil pressure is low:

➡️ Fix oil pump or internal oil flow restriction

If sensor is bad:

➡️ Replace the faulty CKP/CMP sensor

We only replace sensors after confirming they’re the actual cause.

⸻

⚙️ RYAN AUTOMOTIVE WORKSHOP — PROFESSIONAL TAKE

We’ve solved P0016 on multiple Mazda 6 units (2.0 & 2.3) and the root cause is almost always:
• stretched timing chain,
• weak tensioner, or
• faulty VVT actuator.

Mazda engines are extremely sensitive to timing accuracy.
Once P0016 sets, the timing is already out of spec and the car should not be driven long like that.

After timing correction, the engine returns to:
• smooth idle
• sharp acceleration
• zero check-engine light
• normal fuel economy

We handle this cleanly, with proper alignment tools and measuring methods — not guesswork.

⸻

🧾 PROFESSIONAL SUMMARY

P0016 on a Mazda 6 (2007) means timing mismatch between the crankshaft and camshaft.
The most common cause is timing chain stretch or tensioner failure, followed by VVT issues.

A proper diagnostic is required to confirm the exact failure before opening or replacing anything.

Bring it in for full evaluation so we fix it once — correctly.

⸻

Ryan Automotive Limited

Precision. Transparency. Excellence.
Professional Auto Diagnostics • Engine & Transmission Experts • Genuine Parts & Cooling Division
📍 Lagos, Nigeria
📞 Contact via profile/signature
Ryan Automotive Workshop Division

kenmaro:
Thanks for your response. If you can guarantee your technical strength at resolving this P0016, I wouldn't mind giving you a try. Kindly share your address and contact numbers.

Good day boss,
Thank you for your feedback — and we fully understand your concern about guaranteeing the technical strength behind resolving a P0016 on a Mazda 6.

Let me address that clearly and professionally:

⸻

⚙️ RYAN AUTOMOTIVE WORKSHOP — TECHNICAL ASSURANCE (Mazda 6 • P0016)

Before touching anything on the engine, we carry out our own full diagnostics and computerized scanning first.
This includes:

• Cam–Crank correlation checking
• Live VVT advance/retard values
• Timing stretch measurement
• Tensioner pressure evaluation
• Oil pressure influence on VVT
• Scope signal reading (where required)

This is our standard procedure — because timing-related codes must not be guessed.
We confirm the exact cause before giving the green light for any repair.

From experience, P0016 on Mazda engines usually comes from:

• stretched timing chain
• weak/failed tensioner
• faulty VVT actuator

These are jobs we’ve handled repeatedly (Mazda 2.0 & 2.3), with clean completion results:

✔️ smooth idle restored
✔️ precise timing alignment
✔️ no check-engine light return
✔️ zero startup rattling
✔️ improved acceleration and fuel consumption

We use proper alignment tools and OEM-grade components to avoid repeat failures.

So yes — we can confidently stand behind our technical strength in resolving this particular fault.

⸻

📍 WORKSHOP LOCATION & CONTACT

Ryan Automotive Limited
Lagos, Nigeria
📞 Contact via profile/signature (Official Workshop Line)

(That the WhatsApp line .)

⸻

🧾 PROFESSIONAL SUMMARY

Your Mazda 6’s P0016 fault can be permanently resolved once the correct timing and VVT diagnostics are carried out.
We do not guess — we diagnose first, confirm the failure, and then fix it properly.

We’ll be glad to take in your vehicle and restore the timing back to Mazda specification.

⸻

Ryan Automotive Limited
Precision. Transparency. Excellence.
Professional Auto Diagnostics • Engine & Transmission Experts • Genuine Parts & Cooling Division
📍 Lagos, Nigeria
📞 Contact via profile/signature
Ryan Automotive Workshop Division

Okay, will contact you. Thanks!

RyanAutomotive:
Good day boss,
Thank you for your feedback — and we fully understand your concern about guaranteeing the technical strength behind resolving a P0016 on a Mazda 6.

Let me address that clearly and professionally:

⸻

⚙️ RYAN AUTOMOTIVE WORKSHOP — TECHNICAL ASSURANCE (Mazda 6 • P0016)

Before touching anything on the engine, we carry out our own full diagnostics and computerized scanning first.
This includes:

• Cam–Crank correlation checking
• Live VVT advance/retard values
• Timing stretch measurement
• Tensioner pressure evaluation
• Oil pressure influence on VVT
• Scope signal reading (where required)

This is our standard procedure — because timing-related codes must not be guessed.
We confirm the exact cause before giving the green light for any repair.

From experience, P0016 on Mazda engines usually comes from:

• stretched timing chain
• weak/failed tensioner
• faulty VVT actuator

These are jobs we’ve handled repeatedly (Mazda 2.0 & 2.3), with clean completion results:

✔️ smooth idle restored
✔️ precise timing alignment
✔️ no check-engine light return
✔️ zero startup rattling
✔️ improved acceleration and fuel consumption

We use proper alignment tools and OEM-grade components to avoid repeat failures.

So yes — we can confidently stand behind our technical strength in resolving this particular fault.

⸻

📍 WORKSHOP LOCATION & CONTACT

Ryan Automotive Limited
Lagos, Nigeria
📞 Contact via profile/signature (Official Workshop Line)

(That the WhatsApp line .)

⸻

🧾 PROFESSIONAL SUMMARY

Your Mazda 6’s P0016 fault can be permanently resolved once the correct timing and VVT diagnostics are carried out.
We do not guess — we diagnose first, confirm the failure, and then fix it properly.

We’ll be glad to take in your vehicle and restore the timing back to Mazda specification.

⸻

Ryan Automotive Limited
Precision. Transparency. Excellence.
Professional Auto Diagnostics • Engine & Transmission Experts • Genuine Parts & Cooling Division
📍 Lagos, Nigeria
📞 Contact via profile/signature
Ryan Automotive Workshop Division

Please I need suggestion...

FrankValency:
Please I need suggestion...

Check engine timing
Too much air inside the engine
What type of car is this 4-cylinder or v6 engine

That's a Toyota Corolla 2006, It was drinking fuel like water so I went for scan

Abbeyismo:
Check engine timing
Too much air inside the engine
What type of car is this 4-cylinder or v6 engine

FrankValency:
That's a Toyota Corolla 2006, It was drinking fuel like water so I went for scan

Has your engine been opened up recently
For the main issue of concern I’ll advice you look out for vacuum leak also, check your upstream o2 sensors to confirm if they’re functioning correctly because they’re stuck lean and the car uses this Input for fueling measurement

FrankValency:
That's a Toyota Corolla 2006, It was drinking fuel like water so I went for scan

Need a good technician to help you check it out

Has anyone experienced this? My car will just loose power in motion, it won’t rev and it will slowly jack a bit then won’t even move at all., my Rewire changed the fuel pump and filter but problem persist. Scanned in 3 different places but the only thing machine was pointing at is catalyst. Now the Rewire doesn’t even know whr again to go now he’s suggesting that the pump I bought is not strong enough that’s why the problem persist, and again today I noticed the car temperature was going so high the fans were working ac was working fine too.. it’s Honda accord 2012

TUBLEZ:
Has anyone experienced this? My car will just loose power in motion, it won’t rev and it will slowly jack a bit then won’t even move at all., my Rewire changed the fuel pump and filter but problem persist. Scanned in 3 different places but the only thing machine was pointing at is catalyst. Now the Rewire doesn’t even know whr again to go now he’s suggesting that the pump I bought is not strong enough that’s why the problem persist, and again today I noticed the car temperature was going so high the fans were working ac was working fine too.. it’s Honda accord 2012

Check your radiator if it leaks, water pump, radiator cap, before checking if head gasket had left the charroom.

Yea, I did that already, the electrician tested 02 sensor was and it's was ok, he also checked the steaming sensor..he further checked and discovered the catalytic converter is empty, so I'm going to replace it...

Abbeyismo:
Need a good technician to help you check it out

TUBLEZ:
Has anyone experienced this? My car will just loose power in motion, it won’t rev and it will slowly jack a bit then won’t even move at all., my Rewire changed the fuel pump and filter but problem persist. Scanned in 3 different places but the only thing machine was pointing at is catalyst. Now the Rewire doesn’t even know whr again to go now he’s suggesting that the pump I bought is not strong enough that’s why the problem persist, and again today I noticed the car temperature was going so high the fans were working ac was working fine too.. it’s Honda accord 2012

Overheating can damage the engine
Get a technician to help you check the cooling system
Get a bigger scan to scan it properly.
You might need to do a pressure test to know if the coolant is leaking somewhere or not.

Good day o, make una come help me o. My 07 es 350 Lexus I have been driving since 2020.

So the issue started last month when I was coming back and I noticed a sound coming from underneath the steering and I packed called in mech only to discover radiator water is gone and no water at all in the engine. He topped water and I took it home and the following morning I discovered radiator have leakages in the core like 3 places got a new radiator and put in everything got back to normal.

So after like 3 weeks I noticed new radiator cores started leaking again like something punctured it. So yesterday I went to Ladipo and got a Tok radiator double cell like what I had before, after installing it today, poured coolant HOltz, bled it only to discover the reservoir tank is kind bubbling because air is been returned inside there.

NOTE: this happened after the car was on for 10 mins or so with the AC on, I just had to shut the Werey down. Mech said it is the thermostat, he wants to loosen it I refused o. I said it might be the rad cap or the radiator and also my car is sluggish now .

E be like my gasket don travel ni. Guys help out

ourunivibes:
Good day o, make una come help me o. My 07 es 350 Lexus I have been driving since 2020.

So the issue started last month when I was coming back and I noticed a sound coming from underneath the steering and I packed called in mech only to discover radiator water is gone and no water at all in the engine. He topped water and I took it home and the following morning I discovered radiator have leakages in the core like 3 places got a new radiator and put in everything got back to normal.

So after like 3 weeks I noticed new radiator cores started leaking again like something punctured it. So yesterday I went to Ladipo and got a Tok radiator double cell like what I had before, after installing it today, poured coolant HOltz, bled it only to discover the reservoir tank is kind bubbling because air is been returned inside there.

NOTE: this happened after the car was on for 10 mins or so with the AC on, I just had to shut the Werey down. Mech said it is the thermostat, he wants to loosen it I refused o. I said it might be the rad cap or the radiator and also my car is sluggish now .

E be like my gasket don travel ni. Guys help out

Not sure yet get a technician to check and be sure d gasket has worn out first.
Scan d car and drop scan code

Nothing like opening, the 02 sensors were ok, they said the catalyst is not there, I got new one

Louiscars:
Has your engine been opened up recently
For the main issue of concern I’ll advice you look out for vacuum leak also, check your upstream o2 sensors to confirm if they’re functioning correctly because they’re stuck lean and the car uses this Input for fueling measurement

ourunivibes:
Good day o, make una come help me o. My 07 es 350 Lexus I have been driving since 2020.

So the issue started last month when I was coming back and I noticed a sound coming from underneath the steering and I packed called in mech only to discover radiator water is gone and no water at all in the engine. He topped water and I took it home and the following morning I discovered radiator have leakages in the core like 3 places got a new radiator and put in everything got back to normal.

So after like 3 weeks I noticed new radiator cores started leaking again like something punctured it. So yesterday I went to Ladipo and got a Tok radiator double cell like what I had before, after installing it today, poured coolant HOltz, bled it only to discover the reservoir tank is kind bubbling because air is been returned inside there.

NOTE: this happened after the car was on for 10 mins or so with the AC on, I just had to shut the Werey down. Mech said it is the thermostat, he wants to loosen it I refused o. I said it might be the rad cap or the radiator and also my car is sluggish now .

E be like my gasket don travel ni. Guys help out

Good day boss, let’s break this down properly.
Your ES350 symptoms show a clear cooling-system pressure problem, and the repeated radiator-core puncture is a big red flag. Let me explain it cleanly so you don’t allow any mechanic remove thermostat blindly.

⸻

🔍 TECHNICAL BREAKDOWN (DIAGNOSTIC INSIGHT)

1. WHY BOTH RADIATORS KEPT BURSTING

When a radiator core leaks repeatedly in less than a month, the main causes are:

A. Excessive internal pressure
• This happens when combustion pressure enters the cooling system.
• Meaning: early-stage head-gasket failure or warped cylinder head.

B. Faulty radiator cap not releasing pressure
• If cap is weak or wrong rating, pressure builds → radiator becomes the victim.

C. Blocked coolant passages
• Moisture rust, sealant gum or debris in ES350 water jackets can choke flow and cause hot spots that kill radiators.

2. WHY YOUR RESERVOIR IS BUBBLING

Bubbling in the overflow tank after 10 minutes with AC on means:
• Air is not ordinary trapped air.
• It is exhaust gas pushing into the coolant loop.
• This is classic early-phase blown head gasket or cracked head symptoms.

A normal thermostat or fan issue cannot cause bubbling.
Only combustion leak will push air back into the expansion tank like that.

3. WHY THE CAR IS NOW SLUGGISH

Once the ES350 overheats heavily:
• Engine timing retards
• ECU reduces power to protect engine
• Compression may drop on one bank
• Car begins to “carry body” and drag

Sluggishness + bubbling = cooling system already contaminated with exhaust pressure.

⸻

⚙️ RYAN AUTOMOTIVE WORKSHOP PROFESSIONAL TAKE

We’ve handled this exact ES350 scenario multiple times — same symptoms:
• Radiator keeps bursting
• Reservoir bubbling
• Mechanic blaming thermostat
• Sluggish acceleration afterward

In 90% of the cases, the thermostat was innocent.
The real fault was head gasket leak on Bank 1 or warped cylinder head due to running without coolant the first day the owner overheated.

We normally run:
1. Cooling-system pressure test
2. Chemical block test (hydrocarbon test)
3. Cylinder compression test
4. Radiator cap pressure test

Every time we see bubbling + repeated radiator failure, the tests confirm combustion leak.

And once we fix the head gasket + skim the head properly + new cap + correct coolant mix, everything returns to normal.

⸻

📌 PROFESSIONAL SUMMARY

Your mechanic should NOT remove thermostat.
ES350 thermostat failure will cause overheating — not radiator bursting or bubbling.

Your symptoms point to head gasket already gone, and the car is currently pressurizing the cooling system.

Before any repair, do the 4 tests above.
If confirmed, fix the head gasket properly and stop wasting radiators.

⸻

Ryan Automotive Limited
Precision. Transparency. Excellence.
Professional Auto Diagnostics • Engine & Transmission Experts • Genuine Parts & Cooling Division
Lagos, Nigeria
Contact via profile/signature
Ryan Automotive Workshop Division.

Good morning House,

My Toyota Corolla 2006 is showing engine light ON for a while now... A friend of mine assisted me to scan it and below error codes are displaying:
P043E
‎P043F
‎P2401
‎P2402
‎P2419

All codes related to EVAP system, leak detection system, EVAP switching valve, Faulty EVAP canister.

Pls what is the solution to these.... I have asked my mechanic and he pointed that I should not bother about the canister and this is a mere fault. Pls advise.

Please is it advisable to take off the thermostat of my Lexus es 350

Most mechanic are saying it is advisable here in Africa