I got the car scanned and it said Code 63 which from shoebox's site says passenger side o2 sensor (open circuit) does that mean that a wire is shorting or something?

We watched what the o2s were doing and the drivers side would stay pretty consistent in the 120's while the passenger would go from 125 to 4 to 800 to 600 to 4 to 800.. and when the passenger side hit 4 the drivers side would spike all of a sudden..

so any help interpretting this info would be awesome.. Im at school til friday so there isnt much I can do now but collect data and maybe peek around under the hood for anything that doesnt look right.

 

Sounds like to me you have a bad sensor. I'd start with replacing the O2 sensor and go from there....

 

yea im gonna look into that.. but i wanna check the wires first cause that thing is brand new

 

"open circuit" means there is no connection.... not a short. Sensor could be burned out, or the wiring could be disconnected or damaged.

 

cool thanks.. i have a lot of trouble following where those wires go tho.. i know where the o2 sensor is obviously but the the wires just seem to dissapear up towards the engine and i dont know where they are on the other side.. any pics or anything?

 

Shoebox has a photo of a 1995 wiring harness on his website, and the complete PCM wiring diagrams... that would be a good place to start:

http://shbox.com/1/harness.htm

http://shbox.com/1/4th_gen_tech2.html#1995_pcm_wiring

 

yea that part of the wiring harness that is wrapped in what looks like high temp tape or something.. i burnt the **** outta that thing.. ive looked at it and thought i was safe and it was all good on the inside but i think i may have been wrong.. ill have to tear that thing apart this weekend.

 

so yeah that seems to be the problem there in that loom that goes down along the headers containing the knock sensor, o2 sensor, etc... any idea on what would be the easiest or most efficient approach on replacing that?