Originally Posted by Custom88
I guess I'll have to rent an o2 sensor socket. also, I had disoconnected the wireharness and forgot to hook it back up because I couldn't change it and drove the car.. the SES light did NOT come on. What is up with that?
It'll probably cost the same to buy the socket as rent one. Will come off real easy with the socket. Crowfoot wrench also works.
The O2 sensor light won't come on until the computer senses the coolant is warm enough & PCM starts expecting variable voltage from the sensor but doesn't see the variation it expects. Look at SES light as you lift off the gas after accelerating or just cresting a hill at freeway speeds.
Does SES come on with key ON but engine NOT running? If not, bulb may be bad. Otherwise you have problem with wiring, coolant sensor (PCM one not guage), or the PCM.