₦airaland Forum

GAZZUZZ:
Welcome to our repair thread .

We have been able to fix the following jobs without cutting corners.

3RD Generation Acura MDX 2007/8.

Multiple Complaints

1. Catalytic converter bank 2 (P0430)

2. O2 Sensor B1S1 No activity (P0134)

2b. O2 sensor negative Current control B1S1
(P2251)


3. Rocker Arm actuator Bank1 (P2647)

4. Transmission Range Switch Switch Circuit Open (P1717 )

5. Airbag warning light

6. Engine oil pressure warning Light

7. TPMS Warning Lights

8. Finally Blueish/White Smoke at startup.

Kewtt:
.... What do I know?

Alfred74:
Wetin be the ower name self, ciroc abi wetin.
How much you wan sell the car?

GAZZUZZ:
DRL Error solved.

GAZZUZZ:
Back to final work on this vehicle.


Let's do a history check .

The post was made December 27 2020 in one of my free consultation threads.






https://www.nairaland.com/1788778/maintenance-tips-cars/257#97459659

I have highlighted the points to note.

Car was fine until engine oil was changed.

I wrote extensively about switching from mineral oil to synthetic oil in this thread .

https://www.nairaland.com/5398483/warning-dont-buy-synthetic-engine

Let me quote my self.



You can read more in the link provided.

Long story short , protective sludge has been removed by synthetic oil.

To stop the smoke , I will use 20w50 engine oil on the engine , it is thicker oil and will not slip passed the oil control rings as fast as 5w20 would . The smoke will reduce to bearest minimum and will eventually stop after prolonged use.

20w50 is not a death sentence, it is not the best for this engine, but it will work.

I will not be tearing down the engine to replace piston rings as the block could be out of spec, this is the cheapest most efficient way of solving this problem at the moment.

Kewtt:
I think that guy is spooning off...

seanfer:
I remember quoting you on that thread where I said you should get in touch with Gazzuzz that he will be blunt with you, and now I’m glad you did even though you were so frustrated and ready to sell the vehicle.
Now this shows that it’s not by having a big workshop and modern tools just for display. You will enjoy your car.

GAZZUZZ:
Some lies are being spread that we replaced the engine ECU with an updated version sadly the individuals assumption is false .



This is the current old dusty engine ECU in the vehicle with its ID and firmware. You can cross-check on an Acura database if it was updated.


https://www.youtube.com/watch?v=x7Z7UaRidGo

Also more lies as to what we supplied and what we didn't.

First pic is part requested for (engine oil pump MDX 2008) you know I don't have a lifter, so you know where that pic came from.


2nd 3rd and 4th pics is what was supplied (used part) it was unnecessary at the time, I even told the buyer, but he was assured it would solve his oil pressure warning light.

GAZZUZZ:
I love challenges , I took up this job not because of the monetary gains or fame, but to prove a point that it can be done.



The last issues left to be completed on this vehicle were the VTEC system and smoke at startup.

We had a plan which we tried to follow but unfortunately didn't go with it because parts arrived at different times so we had to do other jobs.

How we solved the VTEC code.





In my last update I said I was going to check the electrical connections , it turned out they were fine.


So I took out the VTEC assembly again, I had an old assy lying around in the shop Soni took it apart and started testing all components , also did a pressure test on the switch attached to the assy.


https://www.youtube.com/watch?v=CH27jm2tJ1U

When I was sure it was all fine I began putting it together but for some reason I looked at the original one that came out of the car (came with engine From day 1) and noticed a something was missing in the old part.


Now look closely at all three assys.

www.nairaland.com/attachments/13416961_img20210419125353_jpeg21175690a47f9c3c4e06cb0a2fe66602

www.nairaland.com/attachments/13416963_img20210419125421_jpeg4c00daa109a6be3c29e542290d57464d

Now look where I placed my screwdriver then look again at the pic with all three.

www.nairaland.com/attachments/13416962_img20210419125415_jpeg6f449a53ea60a6d08b38b85291c3192b


I always wondered why previous technician was unable to solve the oil pressure light issue, well there you have it, oil was unable to build up pressure because the valve which is suppose to control the vtec lifters was not there at all.


I have installed the part which i refurbished tested and cleaned up,

Started the car and there are no codes on the dashboard .

Usually the oil pressure warning light would come up at idle after reaching operating temperature, but that no longer happens.

Oil pressure warning is solved , VTech codes gone for good.

We now have a clear dashboard.


https://www.youtube.com/watch?v=JkkenrxOzKY

The active damper system and Daytime running lights are really not an issue but if I am in the mood I will take a look at them.


I will make it my daily driver for a couple of days to be sure there are no more issues.

LaurelP:
Gazzuzz can I bring my car tomorrow. Its having problems starting after some time being off, especially in the morning. Takes at least 7 trials before starting. The exhaust shakes too while trying to start it.
The front left wheel is making noise, the front lights are off. Camry 09

GAZZUZZ:

Monday morning.....




https://www.youtube.com/watch?v=nOu4PrVmDKA

GAZZUZZ:
A little clarification on the word horrible.

On no account should sylicone gum be used on the seals of the VTEC actuator assembly. It is unprofessional and will cause clogging of the strainer in future.

Looking at the pics below on the Toks part you will see there is no gum and it was installed that way with no resulting leaks.


Kindly note we supplied the Engine oil pump assembly and not the actuator assy. Actuator assy to the best of my knowledge came with the car .


#Nomoredistrations

GAZZUZZ:
I am wondering why no one recommended coolant in this vehicle? Was it your inability to afford it or just forgetfulness.

GAZZUZZ:
I remember the first time I drove the car, I mentioned that turning the steering results in a drop in RPM instead of a rise which will compensate for the new load.

Well there lies the problem.

Power steering pressure switch not connected .

Harness is damaged .

diportivo:
don't worry

some of us will collect the money on his behalf.....na why we gather dey workshop

GAZZUZZ:
Update on catalytic converter.

Installing spacers was becoming a Herculean task with manifolds still attached to the engine., So we decided to bring them down.

With the catalytic converter down we noticed catalytic converter material in the sensor 1 areas of both manifolds.

Further inspections reveals a disintegration of the catalytic converter. It's a good thing we caught it this early , would have been fatal to the engine and work being done.

We will gut both banks out and keep the contents for the client when he comes to pick up.

The O2 sensors have been literarily glued to the manifolds and would not unscrew without a little persuasion.

Inception:
Request that he revisit the rear diff.

Honda is kind of picky in the kind of fluid it uses for its rotating parts.

GAZZUZZ:
Taking out the VTEC actuator and solenoid has disrupted the repair plan set out.

I will be draining the Engine engine oil to inspect for metal shredding or particles, then replacing all seals relating to the VTEC system. Will also replace the pressure switch and actuator (even though I am sure they are working fine) I'll rather just work with new (Toks) parts free from previous abuse. Will try and get new harnesses for the parts .

nymphomaniac:
This thread is teaching me a lot of life long lessons sha. I look forward to it’s end.



For what it’s worth crocif, I think you should have taken your car to OP quietly.

GAZZUZZ:
Considering codes P2647 and P2649

Had some time to take out the vtec oil pressure solenoid and pressure switch.(looking horrible)


Also took out the Engine oil pressure switch.

mammanbawa:
I'm happy for you
Please consider detailing this amazing car when it's fixed

GAZZUZZ:
Found the problem, airbag work completed.

Let's see what else we can do before parts arrive

snipesdam:
He made it better? Congrats

Gazuzz:
Give us a try

GAZZUZZ:
I will no longer be making any posts on this thread and on this particular issue.