My check engine light just came on. I checked it really quickly and it was a code 17 - Feedback system for O2 sensor.

When I get the time, I'm going to reset the code and check again.

Assuming it stays on, however, can someone tell me exactly where the O2 sensor is? Also how much does it cost to replace? I was messing around with the car a little this weekend, so I'm hoping all I did was inadvertantly knock something loose.

Thanks!
Matt

 

the O2 sensor is on your stock precat or if you have a downpipe, it will be on it. you can get to it from the engine bay and will need to remove your heat shields to get to it. I don't think you knocked something off... I would first check to see if the O2 is still plugged in on the back of the manifold, there is a wiring harness on the passenger side, make sure the clip is secure. You may have a bad O2 also, they're not too expensive. Good luck.

Richard

 

Thanks for the help. I actually cleared the codes and it didn't come back on. So hopefully everything is okay!