when my 92 dx got jacked the guy cut the o2 sensor but left the sensor in the car...so i crimped all the wires together cept for the big white one..i pulled the metal shield back and just connected the wires, my check engine was gone and gone for a while. but now like when i get on it and say redline 2nd into 3rd, mid to high 3rd the check throws again, but resets and is gone if i start the car right after?...any ideas, is it becuase that sheild is not connected or is it something else?

 

Did you check and see if it was still wired up?

Something might've shaken loose.

 

yea its still all connected

 

somebody please correct me if i am wrong but... i dont think those wires are meant to be cut and once they are i dont believe the o2 is any good.

 

Try soldering the wires.

 

the o2 still has to work or the check would throw from start up, it only throws when i get on it, im not sure if its that or something else?

 

try checking your codes. I may be wrong, but I think you can still have codes in your ECU even without a check engine light on.

 

alright i'll try to check it and find out which code...

 

Your sensor might be going bad. Because once you throw a code, it should stay on until you either fix the problem, or reset the ECU.

 

yeah check to see what code it is.