ECU Problem [Archive] - Audi Forums

: ECU Problem


frizz
08-03-2011, 05:37 AM
Just got my car back from garage. Have been told I need a new ECU because the Bluefin ( superchip ) I installed must have spiked the ECU and their diagnostics cannot read it.
Does anyone know if the ECU can be repaired ?
The car originally went in for repair for the juddering on acceleration under load, which they tell me the engine is overboosting.
1,000 for the ECU, but I'm not sure that this will cure the problem.
Any advice would be appreciated,

R32S3A4Q7
08-03-2011, 07:48 AM
what year, model is your car?
3.0 TDI?

frizz
08-03-2011, 09:55 AM
It's a 2007 3.0L TDI S Line.
Since then I have taken the car to another garage who did manage to read the ECU with their diagnostic equipment. No fault codes came up. The guy test drove it with me in passenger seat holding the laptop, and boost pressure ok. Even when juddering boost pressure didn't drop off. The guy suggested it could be the boost pressure sensor, Mass sensor, or the ECU. But added the these would show up as fault codes.

R32S3A4Q7
08-03-2011, 05:13 PM
I have a ecu if you need it

frizz
08-05-2011, 03:33 AM
Cheers. I am going to try the MAF sensor first.

frizz
09-09-2011, 03:01 AM
Tried MAF sensor first, which made no difference.
Then Replaced the O2 sensor Which stopped the juddering on acceleration.
Dragged the caravan to france and found that the power was down intermittently, (even without towing).
I then put the old MAF sensor back on and all is ok at the moment.(Other one must have been duff).
Going to tow the caravan this weekend to see if all is ok.

frizz
09-09-2011, 08:12 AM
Hi R32S3A4Q7.
The ECU you have. Is the Part No 4L0910401M ?
Is it in working order and how much do you want for it?

R32S3A4Q7
09-10-2011, 10:45 AM
Hi R32S3A4Q7.
The ECU you have. Is the Part No 4L0910401M ?
Is it in working order and how much do you want for it?

Hi
The part number on mine is the same 4L0 910 401 M, its in full working order. Make me an offer. cheers

frizz
09-13-2011, 04:18 AM
150 quid for the ECU.

R32S3A4Q7
09-13-2011, 12:13 PM
150 quid for the ECU.

Okay deal. I have sent you a private message with my contact info. ;)