My friend installed a nismo exhaust and now the check engine light is on.
Can somebody help with this problem or had the same problem.

Z-ya Later

 

There is probably an exhaust leak or disconnected O2 sensor. I have had this problem on my previous Integra.

I just got my car back from the Nissan dealer after getting my S-tune suspension, sways, and exhaust installed. I have not pushed the car that hard, but I can say this is how the car should have came from the factory.

 

No problems with mine - are you sure the CEL isn't from something else, like the gas cap loose or something?? I installed my exhaust at home, nothing to do with O2 sensors and it's hard to believe there would be any leaks if everything was torqued correctly - - I'm back to the gas cap guess?? Good luck.

 

there is no O2 sensor that is effected when installing the CAT BACK system's...

All I can think of it being could be the ground wire that is attached to the stock muffler was either removed or not re-connected

 

the ground wire shouldnt trip a sensor though. just go and use a consult and let us know what code it pulls up

 

I had a the CEL light come on when I installed my CAI. Nothing happened with the exhaust though. Try resetting the ECU and if that doesn't work disconnect the battery for 8-12 hours. If that doesn't work could be something with your airflow.

 

my idea would be......GET RID OF THE SHITTY AZZ NISMO EXHAUST!......HAHA JK...my guess would be the same as the above...disconnect your battery for overnight and try that...if that doesnt work you know its sumthin with the exhaust itself...gotta start eiminating possibilties first....good luck

 

My bro and I installed this exhaust in our garage and didn't get a CEL. I would first check the connection flange to make sure there is no leak. Then reset the ECU. If it still fails get an OBDII consult read out to see what the error code is.