I recently installed a warpspeed y-pipe and now the check engine light came on. I'm not sure if the two are related or not. I have a 0302 and 0707 code. Does anyone have any experience with this? Should I replace the rear oxygen sensor and the EGR valve?

Thanks

 

What year is your car?

 

this is not good i'm getting my y pipe soon an di hope i won't get htis problem...

hope all goes well for you

 

Funny you posted this. I also got code 0302 after installing my y-pipe and cleaning my TB. I just reset the ECU (the correct way), and it never came back even after 1000 miles. Lucky me!

 

Yeah, whenever you get something like that after any install, reset it and see if it comes back.

 

The Maxima is a 95.

I did reset the code once already. This time I'm going to go through and make sure everything is tight and there are no leaks.