I have 2 consistant faults happening P1137 and P1139 which are O2 sensors. The car runs great and has 185K miles on the engine. Anybody have any suggestions before I look to having the pricey O2 sensors fixed??

 

check to make sure that the o2 sensor did not come lose to start. if it is ok check the wire conections on it and give them a good brushing.

tony

 

check the voltage on the sensor, it might also be a wire, last time i checked arent oxygen sensors around $5?

 

I will do that first. No there are 4 O2 senors 2 in front and 2 in back and they all are approximately $135 each that is doing the job yourself. Any dealer want at least $200 per sensor before labor. Thanks again for suggestions I will post what I find out for anybody in the future.

 

are you sure its the o2 sensor and not some thing else for the exaust??

tony