I installed a test pipe and my car is showing a check engine light. I was pretty sure this would happen, but I heard if you remove a fuse it will not set off the check engine light. Anyone know which fuse it is I should pull or have any other ideas on how to not trip the check engine light.

Thanks
Jason

 

pull the back up fuse

 

- or you can get an o2 sim to trick the ecu

 

Ive also heard from a friend you can cover the part of the o2 that goes into the testpipe with aluminum foil, and it will not cause the cel. never tried it though, has anyone?

 

Pulling the BACK UP fuse will cause the car to run poorly, idle badly and will not allow the ECU to be adaptive, so if having no CEL light is more important than these things as well as never knowing if your car will ever have a real problem, then go ahead and run without it in.

 

- hmmm.. someone needs to test that foil theory..

 

i seen the foil work on wrx's

 

the foil didnt work on my turbo civic.

 

Look for an ECG 5-wire O2 simulator. They work fine, and are <$50.

 

you can get that ecg 5-wire O2 sim here:
http://www.wiredspeed.com/index.asp