I just had my new exhaust put on yesterday, which sounds amazing. But then last night my service engine soon light came on and has not gone off. I think it may be from the o2 sensor but not sure i haven't been able to get under the car to look to see if was hooked back up. Has anyone had this problem? Is it nothing to worry about or do i need to return to the shop?

 

are you running a test pipe?

 

Just take it somewhere and have them plug into your OBD-II port instead of guessing what the problem is.

 

If your running a test pipe you will throw a Check Engine code.

 

Go to the ECU flash section and look for the rear o2 eliminator patch. I did it to mine and no more SES light! However if you have to pass emissions I am not sure how it would effect it since I don't have emission where the car is registered. Let me know if you need any help.

Josh

 

So when putting on a new exhaust your gonna have to deal with the check engine light?

 

no you get a mechanical o2 sensor fix and it doesnt come up

 

unless you get a high flow cat then no cel light

 

+1 to that, I recently put in 1 drilled HELP anti-fouler (part#42009) worked like a charm....using both of them I would have left my o2 sensor somewhere on the highway

 

Just Get The No Foulers There 3 Bucks, And Ur Problems Gone

 

whats the difference in the test pipe and high flow cat is it less hp or worse sound??

 

Thanks guys for your help