i have an 92 civic hatch cx with an obd1 fully built gsr in it the car runs great when i start the car there's no check engine lite but it looks like when the car starts to run a little lean the check engine lite will come up. but as soon as i turn the car off the lites gone then it back in a few min.'s ive changed the o2 6 times and the car has been tuned im just trying to get this thing fix so it stays off .

 

bump to the top.

 

So your getting a generic o2 code?? And you know you are running lean?

Richen up your fuel mixture

 

the car was throwing the code before i was tuned and its throwing it after i was tuned it runs great but i just hate seeing that **** light on and because im throw a check eng. the tuner tuned me on open lop.