OBD-1 Code 25 "A/F Lean" Question Options

[jasonrobo02]

Hey all,

I've searched and I haven't been able to come up with an answer to what may be causing the CEL on my 1994. The CEL comes on once in awhile. I haven't noticed any change in driveability or gas mileage. The light will go off after turning off the car and will stay off until another "trip condition" occurs maybe 10 or 100 miles later. The code is stored in memory though and will blink a 25 when I jumper the diagnostic port.

I have recently replaced the 02 sensor and no change. I was hoping that someone had some insight as to what may be causing the CEL.

Thanks in advance for any help.

[celicadude04]

I pretty sure code 25 is Air/Fuel Ratio Lean Malfunction. I have already changed my primary o2 sensor, but I still keep throwing a code. It seems to come on and off randomly. The only thing I can think of that maybe causing it is that I stripped back some insulation on the wire going to the oxygen sensor when I was hooking up and Air Fuel ratio gauge. I unhooked the gauge and wrapped the area of the stripped wire with electrical tape and changed the o2 sensor but I am still getting the code. Any help would be very much appreciated.

This post has been edited by celicadude04: Nov 3, 2007 - 8:02 PM