johnster

iTrader: (27)

car ran like **** today it was throwing these codes. Any help I would appreciate. Thanks john

blk~2000~Z28

P0135 - HO2S Heater Circuit Bank 1 Sensor 1
P0152 - HO2S Circuit High Voltage Bank 2 Sensor 1
P0302 - Cylinder 2 Misfire Detected

I would check the plugs, wires and check for any leaks in the intake tract.

johnster

iTrader: (27)

it was raining hard, would water cause this? suck into the motor

blk~2000~Z28

That is def. a possibility. I had a missfire and a P0135 from plug wire fouling out. I guess when the cylinder missfired the unspent gases went down stream and caused the P0135. I only say that b/c I know the wire was bad and have not gotten either codes since. I would still checks things over and if it doesn't happen again I would not worry about it.

WS6FirebirdTA00

iTrader: (33)

every once in a while i get a p0135 code in my car. what coudl this be? i figured it was from the headers and the plug was cold. i only see this on start up? now u have me worried its something else. i was getting a p0155 before, the pass side... is it just cause headers or faulty o2? or another problem? after i swithced o2s the p0155 went away and i get the p0135 sometimes. hmmm

blk~2000~Z28

If you switched the O2s around I would think that you are either too rich or too lean. Something is causing your 02's to not function properly. My guess is whatever caused your missfire is still causing your P0155 code. Changing O2s around does not get rid of missfire codes.

WS6FirebirdTA00

iTrader: (33)

im saying i only got the o2 codes and no misfire and it only comes on from a cold start, thats it. car runs fine besides that and at WOT both o2s are locked on the same number, 935