₦airaland Forum

Grupo:
Don't know about super market. I got it from all those shops that sell car parts and accessories

RyanAutomotive:
Good afternoon sir,

Thank you for explaining everything clearly. For a 2003 Lexus ES300 (1MZ-FE V6), the symptoms you experienced — temperature rising, coolant bubbling from the reservoir, and overheating solved only when the fan was directly connected — show that the fan control system is not operating properly, not the fan itself.

The direct connection was only an emergency bypass to get you home safely.

⸻

🔧 Professional Diagnostic Insight

1️⃣ ECU-Controlled Fan System Disabled
Your fans are originally designed to:
• Run at low speed when engine warms up
• Switch to high speed when AC or coolant temp gets high

Since the technician bypassed the relay/sensor control:
✔️ fan now runs continuously
✖️ ECU can no longer manage cooling intelligently

This is a temporary workaround, not a solution.

⸻

2️⃣ Bubbling & Reservoir Overflow
This means coolant pressure built up beyond normal.
Possible reasons:
• Cooling fans didn’t kick in early enough
• Radiator cap weak (can’t hold pressure)
• Air trapped in cooling system after boil-over

Even though your radiator didn’t spill, the reservoir is the safety exit for pressure.

⸻

3️⃣ Overheating Will Return Later if Not Correctly Fixed
Driving long-term with direct fan connection can cause:
• High alternator load
• Fan motor early failure
• Incorrect warm-up temperature
• Higher fuel consumption

ECU needs correct signals to protect the engine.

⸻

⚙️ Ryan Automotive Workshop – Professional Take

The root cause must be identified properly — not bypassed.

Most likely faults to check:
• ✔️ Cooling fan relays (2-stage control)
• ✔️ Engine coolant temperature sensor
• ✔️ Fan resistor / fan control module
• ✔️ Radiator cap pressure test
• ✔️ Air bleeding from cooling system

Once the correct component is replaced and the system bled:
• Fan will return to normal 2-speed control based on temperature/AC
• No more random overheating under load or in traffic

⸻

✅ Professional Summary & Next Steps

You should not continue permanently with direct fan wiring.
It was useful as a temporary rescue, but a proper diagnosis is required to prevent:
• Thermostat failure
• Cylinder head gasket stress
• AC performance drop
• Unexpected overheating in traffic

Let an experienced technician test the cooling control circuit and restore it to factory operation.

⸻

📍 We handle advanced cooling system diagnostics and clients travel from different parts of Lagos and beyond — distance is never a barrier to getting the correct fix.

If you want us to inspect and restore everything professionally, kindly send us a DM.

Ryan Automotive Limited
Precision. Transparency. Excellence.
Premium Auto Diagnostics • Engine Cooling Specialists
📍 Lagos, Nigeria

Meklex:
I finally took the car to a mechanic today and he removed the direct fan connection and connected it back to factory settings, he use his car scanner to check and the fan comes on once the car reaches 91°c, so he said the thermostat is still working, he then checked the radiator cap and said it's likely why it overheated. My old radiator cap is rated 1.0 but I wasn't able to find it in the market, but I was able to find 0.9 and 108kpa, I bought both for 3k but currently using the 108kpa cos chatgpt said it's closer to 1.0 rating.


Good morning once again, sir.

Thank you for the update — very happy to hear the fans have now been restored to the proper factory-controlled setup and the overheating issue has stopped during your test drive with AC ON. That confirms you are now on the right track.

⸻

🔧 Professional Diagnostic Insight — Radiator Cap Pressure Rating

For your Lexus ES300 (1MZ-FE V6):

• OEM specification ≈ 1.1 bar (110 kPa)
• Old cap was 1.0 bar (100 kPa)
• New one installed is 108 kPa ≈ 1.08 bar

👉 This is very close to factory spec
👉 Perfectly safe to continue using
👉 Provides stronger pressure stability than 0.9 bar caps

A lower-rated cap (0.9) allows coolant to boil earlier, especially in Lagos heat — not advisable long-term.

⸻

🧪 Why Radiator Cap Matters

Your old cap’s sealing rubber is already deformed and weak (as seen in the picture).
This means coolant pressure escaped too early, causing:

• Reservoir bubbling
• Coolant push-out
• Overheating at low speeds/traffic

So replacing the cap was the correct move 👌

⸻

✔️ Final Recommendation & Monitoring

Continue with your 108 kPa cap permanently.

Over the coming days, observe:

• No coolant loss in reservoir
• Temperature gauge staying stable in traffic
• Fans switching normally when AC is OFF/ON

If all remains stable — case closed 🔒

⸻

📍 Ryan Automotive Workshop — Professional Support

We are always available for:

• Cooling system pressure test
• Coolant replacement & air bleeding
• Thermostat & fan control checks

Clients come to us from different areas — distance is never a barrier to getting the correct fix.

If you need proper coolant flushing and a system health check, kindly reach out via DM.

Ryan Automotive Limited
Precision. Transparency. Excellence.
Premium Auto Diagnostics • Engine Cooling Specialists
📍 Lagos, Nigeria

Should I continue with the 108kpa? I drove it around for more than 30 minutes with the AC on and there was no overheating.

Here's a picture of the old radiator cap.

Meklex:
I finally took the car to a mechanic today and he removed the direct fan connection and connected it back to factory settings, he use his car scanner to check and the fan comes on once the car reaches 91°c, so he said the thermostat is still working, he then checked the radiator cap and said it's likely why it overheated. My old radiator cap is rated 1.0 but I wasn't able to find it in the market, but I was able to find 0.9 and 108kpa, I bought both for 3k but currently using the 108kpa cos chatgpt said it's closer to 1.0 rating.

Should I continue with the 108kpa? I drove it around for more than 30 minutes with the AC on and there was no overheating.

Here's a picture of the old radiator cap.

Meklex:
I finally took the car to a mechanic today and he removed the direct fan connection and connected it back to factory settings, he use his car scanner to check and the fan comes on once the car reaches 91°c, so he said the thermostat is still working, he then checked the radiator cap and said it's likely why it overheated. My old radiator cap is rated 1.0 but I wasn't able to find it in the market, but I was able to find 0.9 and 108kpa, I bought both for 3k but currently using the 108kpa cos chatgpt said it's closer to 1.0 rating.

Should I continue with the 108kpa? I drove it around for more than 30 minutes with the AC on and there was no overheating.

Here's a picture of the old radiator cap.

Macmilla:
UPDATE!
The thermostat.
Of course, the thermostat was gone. Our kazeems no de waste time to yank it out. And her fan was on all the time. So I went to my parts dealer and requested for a thermostat. My dealer and everyone around were looking at me like I'm crazy. But I didn't care. I insisted he sells one to me and he eventually did. Note that the thermostat comes together with the housing and is not supposed to be separable. I was offered the whole housing with the thermostat but cheap me refused. How will I buy the whole thermostat housing when my own housing is intact. So cheap me collected a thermostat removed from another car. I went home, tested it inside hot water to confirm it works well while checking the temperature with my thermometer. Then, I coupled it back to the housing (this was not easy but it has to be done as cheap as possible ). After installation, car was happy but...
The fan was still on permanently.
A code was on about the ECT sensor. So I traced the ECT sensor and noticed the wire was dangling behind the radiator. I located the ECT sensor and tried to plug the connector back, but for some reason, the plug couldn't enter. I was able to look at the sensor on the radiator and realized the socket and the plug are completely different. Omo! I begin to scratch my head. What is going on? A few pages of googling, I got to learn that 2003 - 04 accord use different radiator from 2005. The only difference actually is that 2003 04 use "fan switch" while Honda switched to Engine Coolant Temperature (ECT) sensor from 2005.
The fan switch (03 and 04) just switches on the radiator fan when the coolant is hot enough (off and on switch), while the ECT sensor senses the temperature of the coolant and sends the information to the brain box. The brain box uses the information to know when to switch on and off the radiator fan.
Note that these two items, fan switch and ECT sensor, are completely different in both size and function. One can not replace the other. This in turn makes the radiator for 03-04 not compatible with 05. You can not simply remove the fan switch and replace it with ECT sensor, cos the thread size is not the same. ECT sensor is smaller. I learnt this after buying an ECT sensor to install but couldn't fit it into the hole as it was smaller.
For all of you using this car, if you want to replace your radiator, make sure you are buying the correct one for your car
Some kazeem, in his infinite wisdom, installed a radiator for 03-04 on my 05 accord. And because the connector doesn't fit, he just left it dangling and made the fan permanent.
Since the only difference is the the thread hole, I can't just throw away a fully functional radiator just because of thread size. So I found a thread reducer. This wasn't easy as I couldn't find the perfect reducer that can convert the 18 thread of the fan switch to the 12 thread of the ECT sensor. I had to order something close from AliExpress and gave it to a metal works guy to make it work. Eventually, my ECT fit into the hole and no leaks. But the fan was still permanently on. A little rummaging in the under hood fuse box revealed the problem. The fan relay was bridged. Removing this bridge and everything worked according to design. Finally! Praise God!
The whole higihaga above took me more than a month to figure all out and find solution to all. But it was fun.
...
The moonroof was even more challenging.
I started by adding more lubrication to the rails and cable but that didn't help. My kazeem noticed the moonroof motor gets hot and said the motor needs to be replaced. I strongly doubted this cos I know that the only reason a motor gets hot is if there's resistance to its movement. So I suspected that it was the stuck moonroof that is making the motor work too hard and therefore gets hot. But since I was out of ideas, I decided to go with it. But of course, two motors later and same issue persisted. I also noticed a lot of maneuver has been done to the moonroof in the past. The rail even has an injury at a point like something hit it. So I was already giving up on the moonroof when I stumbled on a car being parted out. The moonroof seemed intact and the owner told me to bring 10k and take the whole moonroof assembly. That is because nigerians don't give much f++k about moonroof. Omo! Na speed I use collect am o.
But ironically, after installation, the moonroof still refused to move properly
After a lot of head scratches, the body work guy that helped me install it gave me the usual kazeem talk "just start using it like that, it will free up with time". But I knew that was bullshit. So when I got home, my brain just couldn't rest. So I went back on my own to bring down the roof liner and removed the moonroof assembly. This was the most difficult task I've ever tried on my own. Omo! I sweat die sotee I asked myself "who send you". But after reinstalling it same problem continued. The holy spirit then whispered to me to try something.
I removed the motor, pushed the moonroof glass all the way back, made sure the two sides of the glass hit a stopper, then I reinstalled the motor and voila! That was it. The glass closed and open very smoothly. I felt like I won the world cup. It happened that the kazeem body work dude, while removing the moonroof assembly from the other car, removed the motor and moved the glass. This put the glass and it's cables out of alignment, therefore increasing resistance. I even returned all the new moonroof motors I bought and reused the only one in the car.
....
So finally all is done. Little money, but plenty stress.
Betty was now happy. Engine has not overheated till today. Moonroof still works smoothly till today.
...
And did I mention I gave Betty a factory booth spoiler? Yes I did and she was happy. I love spoilers.
...
Recently, the devil decided to tempt Betty. A heavy wind blew on the 14th of this month. This evil wind uprooted a solar panel from somewhere I don't know, carried it all the way, and landed it on Betty. Betty's front passenger window shattered, the side mirror was destroyed, and the door was injured seriously. I cried for Betty that day because she didn't deserve that. Betty is still recovering.
I'm using the opportunity to give her the TSX side mirrors I've always wanted. After that, I'll repaint her.

Grupo:
I have this air freshener I bought since May and it's still effective till today.

I bought it for like 12k then.

But I don't know the name off hand. Maybe when I step into my car later today or tomorrow, I'll snap and post the picture here

mrdireal:
How did you bypass the O2 sensor and clear the error code?

Meklex:
I finally took the car to a mechanic today and he removed the direct fan connection and connected it back to factory settings, he use his car scanner to check and the fan comes on once the car reaches 91°c, so he said the thermostat is still working, he then checked the radiator cap and said it's likely why it overheated. My old radiator cap is rated 1.0 but I wasn't able to find it in the market, but I was able to find 0.9 and 108kpa, I bought both for 3k but currently using the 108kpa cos chatgpt said it's closer to 1.0 rating.

Should I continue with the 108kpa? I drove it around for more than 30 minutes with the AC on and there was no overheating.

Here's a picture of the old radiator cap.

nickyosas:
Happy new year!
I drive a Honda crv 2008 and recently changed the engine and brainbox. I have been having g this P2135 code intermittently... I have cleaned the throttle body, idle relearn process... still nothing. Who has faced such issue and what's my way forward? please help.

erico2k2:
DId anybody recode the engine?

nickyosas:
they recode or reprogram the new brainbox...the problem didn't happen until about 2 weeks after all was done.

Macmilla:
Please leave your engine and brainbox alone and do what the car is telling you to do.

Grupo:
See

GiftAbia1:
HELLO GUYS PLEASE I NEED HELP.

I RECENTLY BOUGHT A CAR AFTER SOME DAYS I DISCOVERED THAT WHENEVER I ON HEADLIGHTS THE CAR WILL OFF. I THINK ITS PROBABLY WEAK BATTERY OR ALTERNATOR NOT CHARGING.

NOW IF ITS WEAK BATTERY, WHAT ;
* PRODUCT/MODEL CAN YOU RECOMMEND FROM EXPERIENCE?
* ANY IDEA OF THE COST?

RyanAutomotive:
Good morning sir,

Thank you for reaching out, and well done for noticing this fault early 👍
For better and faster diagnosis in the future, please always include full vehicle details when posting:
Vehicle Make + Model + Year + Engine size (and transmission if possible).
Electrical systems vary widely across models.

That said, let’s address the issue you described.

⸻

🔧 Professional Diagnostic Insight — Headlight ON, Engine OFF

When a vehicle switches off immediately after headlights are turned on, it is a strong electrical system fault, not something to ignore.

Based on experience, the most likely causes are:

1️⃣ Weak or Failed Battery (Very Common)
• Battery can no longer support electrical load
• Voltage drops sharply once headlights are engaged
• ECU, fuel pump, or ignition system shuts down as protection

This usually happens when:
• Battery is old (2–3 years+ in Nigerian heat)
• Battery is sulfated or internally damaged
• Wrong battery type was installed previously

⸻

2️⃣ Alternator Not Charging Properly

Even with a “new” battery, the car can shut off if:
• Alternator is weak
• Charging voltage is below spec
• Alternator diode/regulator is faulty

Headlights add load → system voltage collapses → engine stalls.

⸻

3️⃣ Poor Grounding / Electrical Connections

Very common on Nigerian-used vehicles:
• Loose or corroded battery terminals
• Weak engine-to-body ground
• Bad chassis earth point

A poor ground can behave exactly like a bad battery.

⸻

⚡ Battery Recommendation (From Experience)

Without vehicle details, here are safe professional guidelines:

✅ Recommended Battery Types
• Bosch
• Varta
• Exide
• ACDelco
• Amaron

Always choose:
• Maintenance-free (MF)
• Correct Ah (Amp-hour) rating for the car
• Correct CCA (Cold Cranking Amps) — very important

⚠️ Using “any battery that fits” is a common mistake and causes issues like this.


⚙️ Ryan Automotive Workshop — Professional Take

This is not a guess-and-replace issue.

Before buying anything, the car needs:
✔️ Battery load test
✔️ Alternator charging test (engine ON & under load)
✔️ Voltage drop & grounding inspection

Replacing a battery when the alternator is bad will only waste money.

⸻

📌 What We Recommend (Next Steps)

Bring the vehicle in for:
• Full charging system diagnosis
• Battery & alternator test under load
• Grounding and terminal inspection

Once tested, we’ll tell you exactly whether it’s:
• Battery only
• Alternator only
• Or wiring/ground fault

No trial-and-error.

⸻

📍 Distance is never a barrier — clients come to Ryan Automotive Limited from different locations for accurate diagnosis and lasting solutions.

If you want the issue solved once and correctly, feel free to reach out.

Ryan Automotive Limited
Precision • Transparency • Excellence
Premium Auto Diagnostics • Electrical Systems • Driveability
📍 Lagos, Nigeria

We’re always here to help you keep your vehicle reliable and safe 🚘⚡

GiftAbia1:
Thank you RYANAUTOMOTIVE for your swift and detailed response. However,

* Vehicle type: Honda Accord 05, 4 plug engine.
* What's your shop address?
* If it's a battery Fault, the batteries you recommend are they listed in the other of preference?

dukeo:
Good day everyone here. For months now I've been having problems with my 2010 toyota corolla. The car hard starts. If I'm lucky it starts after the first crank in the morning but it takes too long, dragging before it starts. Other times the first crank would be unsuccessful and the second or third one does the trick and sometimes I need to step on the gas pedal for it to pick up.

Vehicle has been scanned and brought up some codes about misfire, timing and oxygen sensor.

Things I've done based on recommendations: serviced the injectors, changed spark plugs x2, changed fuel pump x3, timing change job done and yes the timing chain wasn't properly set, changed coils.

Yesterday was the worst, had to spend the whole day at the mechanic watching them work on the timing. I want to believe these guys are not sure what the problem is, I need help 🤲🏾

RyanAutomotive

Grupo:
See

@noble71

RyanAutomotive:
Good afternoon sir,

Thank you for the feedback and for providing the vehicle details 👍
Honda Accord 2005 — 4-cylinder (4-plug engine)

That information helps narrow things down properly.

⸻

📍 Workshop Location

Ryan Automotive Limited
📍 Along LASU–Isheri Road, Lagos


🔋 Battery Recommendation — Order of Preference

Yes sir, the brands listed are based on experience and reliability, and below is our general order of preference for this Accord (subject to availability and correct rating):

1️⃣ Varta – Excellent voltage stability and lifespan
2️⃣ Bosch – Very reliable, handles electrical load well
3️⃣ ACDelco – Strong performance if original capacity is used
4️⃣ Amaron – Good durability in Nigerian climate
5️⃣ Exide – Acceptable when properly specified

⚠️ The most important factor is not just the brand, but:
• Correct Ah rating (usually 60–70Ah for this model)
• Correct CCA
• Proper installation and clean grounding

A high-quality battery installed on a weak charging system will still fail.

⸻

⚙️ Professional Note (Very Important)

For the 2005 Honda Accord, we strongly advise:
✔️ Battery load test
✔️ Alternator output test under electrical load
✔️ Grounding and terminal voltage-drop check

Only after these checks can we confirm if it’s battery-only or charging-related.

⸻

If you’re ready, you can bring the vehicle in for proper testing and we’ll guide you transparently from there.

Ryan Automotive Limited
Precision • Transparency • Excellence
Premium Auto Diagnostics • Electrical Systems • Driveability
📍 LASU–Isheri Road, Lagos

We’ll be glad to help you resolve it once and correctly 🚘⚡

GiftAbia1:
God bless you for the detail explanation

2cribz:
Dey follow chat gpt dey chat. No worry,e go late catchfire.

RyanAutomotive:
Good day sir,

Thank you for taking time to explain the situation clearly. We understand your frustration — especially after multiple repairs with no resolution. You’re right to pause and reassess. 👍
Vehicle: Toyota Corolla 2010

Based on everything you’ve described, this is a classic case of repeated repairs without a confirmed root cause.

Let’s break this down properly.

⸻

🔧 Professional Diagnostic Insight — Toyota Corolla (2010) Hard Start

Reported Symptoms:

• Hard starting, especially cold
• Long cranking before engine fires
• Sometimes needs throttle input to start
• Inconsistent start — 1st, 2nd, or 3rd crank
• Multiple fault codes: misfire, timing, oxygen sensor
• Repeated parts replacement without improvement

This tells us one thing clearly:

⚠️ The problem is not random — it is systematic and unresolved.

⸻

🚨 Critical Observation (Very Important)

You have replaced or Service:
• Injectors
• Spark plugs (twice)
• Fuel pump (three times)
• Ignition coils
• Timing chain (initially mis-set, then reworked)

Yet the issue persists.

This strongly suggests:
❌ Parts are being changed without confirming why they are failing
❌ The base engine condition or reference signals are not being verified

⸻

🔍 Likely Root Causes (From Experience)

1️⃣ Timing Still Not Correct (Mechanical vs ECU Reference)

Even if the timing chain is “aligned”, problems occur when:
• Crankshaft & camshaft signals are out of correlation
• Timing marks are set but VVT position is incorrect
• Timing was done without locking tools or scan confirmation

This will cause:
• Hard start
• Misfire codes
• Timing correlation errors
• False oxygen sensor codes

➡️ This is extremely common on Corolla engines after timing work.

⸻

2️⃣ Weak or Incorrect Crankshaft / Camshaft Sensor Signal

Not just “bad” sensors — but:
• Wrong brand / aftermarket sensor
• Signal drop during cranking
• Poor sensor gap or wiring issue

If the ECU cannot read crank position properly:
• Engine will drag before starting
• ECU delays fuel & spark
• Multiple start attempts are needed

⸻

3️⃣ Fuel Pressure Bleed-Down (Not Pump Failure)

Changing fuel pumps repeatedly does not rule this out.

Possible issues:
• Faulty fuel pressure regulator
• Leaking injector(s) after shutdown
• Fuel pressure not holding overnight

This causes:
• Long crank in the morning
• Starts faster when throttle is applied

⸻

4️⃣ Engine Coolant Temperature (ECT) Sensor Error

Very overlooked.

If ECU reads wrong temperature:
• Cold engine gets wrong fuel mixture
• Hard cold start
• Driver needs to press accelerator

This can happen without a clear fault code.

⸻

5️⃣ ECU Learning / Adaptation Not Reset

After major engine work:
• Timing
• Injectors
• Sensors

If adaptations are not reset:
• ECU uses old data
• Cold start fueling becomes incorrect

⸻

🚫 What This Is NOT
• Not spark plug brand
• Not number of fuel pumps
• Not random misfire parts
• Not guesswork repair

Your car needs structured diagnostics, not more parts.

⸻

⚙️ Ryan Automotive Workshop — Professional Take

At this point, continuing with the same approach will only:
• Waste more money
• Damage engine confidence
• Increase risk of timing or valve damage

This Corolla needs:
✔️ Mechanical timing verification (not just marks)
✔️ Crank–cam correlation check with live data
✔️ Cold-start fuel pressure test (overnight hold)
✔️ Sensor data review during cranking
✔️ ECU adaptation reset & relearn

Only one or two of these will expose the real fault.

⸻

📌 What We Recommend (Next Steps)

Bring the vehicle in for:
• Full Toyota live-data diagnostic scan
• Cold-start monitoring (first crank analysis)
• Timing & VVT correlation check
• Fuel pressure retention test
• Sensor plausibility test (ECT, crank, cam, O2 logic)

Once this is done, the problem becomes clear and fixable — no trial-and-error.

⸻

📍 Distance is never a barrier — clients bring vehicles to Ryan Automotive Limited from different locations for accurate diagnosis and peace of mind.

If you want the issue solved once and correctly, feel free to reach out.

Ryan Automotive Limited
Precision • Transparency • Excellence
Premium Auto Diagnostics • Engine Timing • Driveability
📍 Lagos, Nigeria

We’re here to help you get your Corolla starting clean, confident, and reliable again 🚗⚙️

fbtowner:
Hello chief Good afternoon. Thank you for the good work you do here always

I have a Honda Accord 2008 4 cylinder engine.
it kind of vibrates which I don’t like I have changed all 4 engine seats it didn’t stop, i think I have made peace with it

But recently sometimes once I drive for about 3 mins the VSA and the triangle and exclamation ⚠️ comes on, when I turn off the engine and on again it will be off until I drive for about 3 mins

I have replaced the passenger side hub complete but VSA light still persist

I bought a scanner and scanned so I got the following codes
C1555
P0141
P0011
P0497
P145C
P2184
P2183

I guess I have more problems than I thought

Please what can you advise about these codes.

I noticed your workshop is around Lasu- isheri. I won’t mind dropping by if need be.

Thanks.

RyanAutomotive:
Good day sir,

Thank you for the detailed explanation and for the kind words. We truly appreciate it. 🙏
You’ve done the right thing by stopping further random repairs and seeking clarity.

Vehicle: Honda Accord 2008 (4-Cylinder)

From everything you’ve described, this is not a coincidence of many problems, but a few related issues triggering multiple fault codes. Let’s break it down properly and calmly.



🔧 Professional Diagnostic Insight — Honda Accord 2008

Reported Concerns:
• Persistent engine vibration (even after replacing all engine mounts)
• VSA + Triangle warning coming on after ~3 minutes of driving
• Warning clears after restart, then returns
• Passenger-side hub replaced, but VSA fault remains
• Multiple fault codes present

This tells us one key thing:

⚠️ The ECU is detecting system conflicts after the vehicle starts moving and enters closed-loop operation.



🧠 Understanding the Fault Codes

1️⃣ C1555 — VSA / Wheel Speed / Steering Angle Related

This is critical.

Very important to note:
• Replacing one hub alone does not guarantee VSA resolution
• VSA faults can be triggered by:
• Mismatched wheel speed signals
• Steering angle sensor out of calibration
• Brake switch or yaw sensor issues
• Voltage or ground instability

That explains why the light comes on only after driving, not immediately at startup.

➡️ VSA systems are extremely sensitive on Honda vehicles.



2️⃣ P0011 — Camshaft Timing Over-Advanced (VTC / VVT Issue)

This code alone can cause:
• Engine vibration at idle
• Poor drivability
• Chain-reaction sensor errors

Common causes on this Accord:
• Dirty or sticking VTC solenoid
• Sludge-restricted oil passages
• Incorrect oil viscosity or poor oil flow
• Timing reference drifting (not necessarily a full timing failure)

⚠️ This code must be addressed first — it affects everything else.


3️⃣ P0141 — O2 Sensor Heater Circuit (Bank 1 Sensor 2)

This does not always mean a bad sensor.

Possible causes:
• Heater circuit wiring issue
• Blown fuse or shared ground fault
• ECU detecting abnormal exhaust data due to timing/VVT issue

➡️ Very often a secondary code, not the root cause.

⸻

4️⃣ P0497 & P145C — EVAP / Purge Flow Abnormal

These indicate:
• Incorrect purge flow when commanded closed
• Vacuum or purge valve control issue

Common on Honda:
• Weak purge solenoid
• Cracked vacuum lines
• ECU confused by unstable engine operation

5️⃣ P2183 & P2184 — Engine Coolant Temperature Sensor (High Input / Correlation)

This is very important and often overlooked.

If the ECU reads incorrect engine temperature:
• Fuel mixture becomes unstable
• Idle quality suffers
• VSA and emission systems can malfunction
• Warning lights appear after warm-up (your exact symptom)

⚠️ This alone can explain the 3-minute delay before warnings appear.

🚨 Critical Observation

You are seeing:
• Vibration
• Timing-related code
• Temperature sensor errors
• Emission and VSA faults

This strongly suggests:
❌ A shared reference problem (sensor data integrity, grounding, or oil-controlled VVT issue)
❌ Not multiple unrelated failures


🚫 What This Is NOT
• Not just engine mounts
• Not solved by replacing hubs alone
• Not “too many problems”
• Not trial-and-error parts replacement

Your Accord needs structured Honda-specific diagnostics, not guesswork.

⚙️ Ryan Automotive Limited — Professional Take

At this stage, the correct approach is:

✔️ VTC / cam timing live-data analysis
✔️ Engine oil pressure & VTC solenoid inspection
✔️ ECT sensor plausibility test (cold vs hot data)
✔️ Full VSA system scan (steering angle, yaw, wheel speed correlation)
✔️ Wiring & ground integrity check
✔️ ECU data comparison — not just fault reading

Once the first incorrect signal is identified, several of these codes will disappear together.


📌 Recommended Next Step

Yes, you are welcome to bring the vehicle in.

We handle cases like this daily, and clients bring cars to us from different parts of Lagos and beyond because correct diagnosis saves money and time.

📍 Ryan Automotive Limited — LASU / Isheri Axis
Precision Diagnostics • Transparent Repairs • Excellence
Once inspected properly, we can tell you what truly needs fixing and what doesn’t — before you spend another naira.

You’re on the right path already. We’ll be glad to help you finish it correctly. 🚗⚙️

fbtowner:
Thank you so much chief. I will DM you on whatsapp today and see if I can drive down on Saturday.

Thanks once again.

fbtowner:
Thank you so much chief. I will DM you on whatsapp today and see if I can drive down on Saturday.

Thanks once again.