I recently purchased a 1997 Audi 1.8T for $800 because it was running poorly with smoke coming out the exhaust. I determined the turbo was bad and purchased a used turbo. I installed the turbo and the car started right up and seemed to run well, with smoke coming out the exhaust, but I was hoping the remaining amount of oil would be burnt off. I ran the car for about 5 minutes then turned it off to check a trouble code. The code was for a bad coolant temperature sensor which was previously there. Then I try to start the car up, and it just wont start. It cranks just fine, its getting fuel and spark, the timing is good, the compression is between 118-128 for all four cylinders. I cant figure out what is wrong, Please Help. Thank you.

 

UPDATE:
So I left the car alone for the rest of the day and the next morning I attempted to start the car and it struggled a little bit, but started up. I turned it off after 45 seconds or so. Then I tried to start it again and it started right up, and I took it for a test drive and it is running good. Since then its starting fine.
I dont know what the problem was, but maybe putting a different turbo on threw the computer off and it had to adjust??? Who knows, but at least it started up!!

 

Its the temp sensor...

 

The temperature sensor is what was causing it not to start? Thats wierd.

 

Seems so, but I had the same prob on a Ford.. it would start and run after sitting for 2 hours, but not while warm. Eventually it would just die after about 10 mins of running. Everyone said it was the MAF, dealer included. I swapped them and didnt change anything. Eventually I found there were two temp sensors; one single wire for the gauge, and one dual wire for the ECU. I swapped the dual wire one out and it started working perfectly. It seems that when these fail, they fail Low or High. If Low, the ECU thinks its -40F all the time which will allow the car to start cold but not run when it warms up. If High, its the other way around - the car is hard starting, but runs good warm.

Not saying that this is the prob for sure, but since you already have a code for it...?

 

Cool, I love to hear new information from other peoples experiences. Diagnosing is the hardest part in automotive repair.
I purchased a new temperature sensor for the car, but I cant find where it goes. I have found a four wire fan switch sensor that is in the rear of the engine, this coolant temp sensor is a two wire, but cant find where this darn coolant temperature sensor. Thanks for the input.

 

Hi, Im trying to login on a shard running POL096
with their client and since there was no "signature" i ran ilPatcher for it to build.
It did but doesnt find Decrypt 1 key, and login fails - stalls at verifying.
Also using option: same as client . doesnt work but the client alone logins.

it returns:
Code: