We're the lucky ones...OBDI 525's only have one O2 sensor...
Quote:
Originally Posted by nmwaldron
Hi
Got a check engine light on tonight, I did the pedal pump test and got back code 1222 which is lambda control 1. I understand this is probably the o2 sensor but which one? A while ago, I took my car to the stealership with a check engine light and they diagnosed a faulty o2 sensor (didn't tell me front or back) as I was driving home the engine light went off. It came back on today with that code. I plan on fixing it myself but need to know whether it's the front or back o2.
If anyone can help, it's appreciated.
Thanks
Nate
...but your problem may not just be O2 sensor. Code 1222 can indicate O2 sensor out of range, which could mean massive vacuum leak. Check all your vacuum hoses first, including the plenum hose from the airbox to the throttle body, for leaks or cracks. Then search here for code 1222 issues. You'll find a lot.