I got the CEL again after a long trip. I heard some screetching noise under the hood I opened up the hood and realized my aftermarket intake was loose and moving around a bit. So I tightened everything up and reset the ECU. Took another trip and the light came back. The codes are 10-1, 9-1, and 9-2 which is are the front left and right o2 sensors and the rear right o2 sensor. I read that the front o2 sensors are part of the y-pipe and I just had the rear o2 sensor replaced about a month ago. Could it be cause of the intake or is it just a coincidence

 

Anyone? Also I thought it was odd to get all 3 o2 codes at once. I figure maybe its just one of them that failed and its causing the other 2 to be off

 

probably a coincidence, i dont think the intake had anything to do with the o2 sensors.

how many miles do you have on the front o2 sensors?

 

60k on the car

 

something similar happened to me, but it was during the installation on my y-pipe, while i was installing my y-pipe, the pipe fell with the o2 sensor already hooked up, this ripped the o2 sensor off the wiring harness. causing the CEL throwing front left and right o2 sensor code.

since you only have 60k miles, i doubt the sensor would go bad this soon, it might the fuel you put in your car, do you put in premium? if not, always put premium, they can mess you the sensor if your using less than premium.

 

Always used premium since I got it at 20k miles. You're theory could very well be true cause I hit a pretty big pot hole head on right before the light came on. The same jolt that jarred my intake lose could of hit the pipe and ripped off the sensor or something. I'm gonna go look under the car right now

 

So i brought it to the dealership and the problem was a blown fuse. Everythings working fine now. Just wanted to post this incase anyone else has the same problem

 

The cover to fill that fuse box with all of the fuse information in my car was missing when I purchased the car. Can you take a picture of which fuse it is?