The truck is a B2300 2.3L 1996 the only code I have now is a P0135 o2 sensor heater. I have replaced the sensor and I still get the P0135 code. I have reset the PCM and driven the truck to work about 15 miles and the code has not returned yet. Have not been able to check for spark or fuel at the time the truck shuts off being that I am on the side of the road without any help to turn the key. By the time anybody shows up the truck will start up and run again. Can you explain the auto shutdown you spoke of earlier? What would cause the PCM to shut down and is there a time limit for it to restart? I will drive it till it gives me another code or shuts
off again to see If I can give you more info.I know this is an unusual problem. Just for your info I had a high idle problem for about 4 months and my A/C compressor stays on no matter where the switch is set except when in the off position then it shuts off.I am looking for a breakout harness so I can find out more about the PCM. Thank You for your time and hope we can solve the problem.
Monday, December 15th, 2008 AT 9:17 AM