Installed Replacement Turbo - Getting Check Engine Light

[dsm59]

Hey guys,

I just put on a used replacement turbo on a 97 Tsi AWD. Before replacing the turbo, there wasn't any CEL's coming on. I replaced the turbo and it's giving me a CEL. The only thing I can think of is...I accidentally left out the metal ring between the manifold and the turbo. I looked up a few threads and a few people have said that its ok to take it out and it was just used in conjunction with the gasket. Some said that a lot of people take it out but only if they port the area it used to be in. That's my only idea but I just need some help. Haven't ran any codes yet...just put it on yesterday.

Thanks.

 

[cruisintalonawd]

check the code. its your best bet.

 

[VETTE_50_TH]

Yea, cruisintalonawd is right. Check the code and see what it is. I HIGHLY doubt that is the metal ring to keep the manifold and turbo aligned. Thats all thats there for. I would think its a 02 sensor issue or a intake MAP issue of some sort. By replacement do you mean upgrade? Do you have any leaks and smoke at all.

Worst comes to worst. Pull the battery terminal and reset the ECU and see if it comes back. And when it comes back. But the best thing to do is check the code with a scanner at autozone which they can do for free.

James

 

[RedTurboEclipse]

you dont really deal too much with any sensors.. as mentioned, the obvious is you forgot to plug the maf, or the front o2 sensor got messed up during the install.

but instead of trying to guess, just read the code.

 

[Mr Peepers]

The ring is there to protect the gasket from the heat, the ECU has no idea whether it's there or not. I would look at all the surrounding sensors such as the o2 sensor and perhaps coolant sensors to make sure they are plugged in and not damaged. Check for boost leaks and/or exhaust leaks too, if the car runs too lean for a while/thinks it's running too lean during closed loop it can throw a code.