hey everybody.. i have a serious problem that has been really buggin me..

i put in my 04' wrx a Vishnu Up-pipe and a vishnu divorced down pipe with my cat-back exhaust system. the problem is that my check engine light is remaining on.

i tried to reset my ECU but is keeps comin back.... so i was thinkin that is could be the o2 sensor...


if you guys could please help me cause with this light on... i don't know if anything is really wrong.. thank you so much!!!!! And do you think that this might help or SOLVE the problem HKS S-AFR Super Air Fuel Ratio Regulor ????

thnk u once again Short Shift

 

How did you plug the bung in the uppipe? Did you:
1. Reinstall the sensor as it normally was
2. Install it to plug the hole and unplug the electrical side of it.
3. Plug the hole with a bolt or something and leave the sensor dangling?

Answers below correspond to situations above:

1. Unplug the electrical side, insert resistor as CEL fix, and tape the connection up.
2. Same as #1
3. Same as #1

This is only a recommendation from my limited knowledge. I just installed my TurboXS uppipe last night. We cut the sensor, so it couldn't be sucked into the uppipe, and used the rest to plug the bung in the pipe. Then, I unplugged the electrical side of the sensor, inserted the resistor, and taped it up. 10 miles today with no sign of any problems. For anyone to give you any more advice than this, I think you need to give some more details on what was actually done on your specific install.

 

Thanks a bunch.. i'm gonna have to check into that because i dind't want to mess with up-pipe so i had Sound Performance install all of it.. i' ll have to go back and ask them . But do you think that Air manegement thing would work?

 

I really have no idea if it will help you or not. Since you had someone else do the install, my guess is that they didn't know a CEL fix is needed.

Question from me: Are you completely catless now? If so, you may need the MIL Eliminator for the aft sensor to keep from getting the CEL. I have the TXS Racepipe in, and it threw a CEL that would remain on, and come back after resetting the ECU and driving 20 miles or so.

 

Quick question here have you pulled the code to even see what it is? Maybe it's a combinatin of things, don't just expect it to be a CEL about your cat....

Good luck