MIKEY'S 2002 TA

iTrader: (24)

hi, i have a 02 trans am with 40,000 miles on it and when it rains out the car will start to miss. i have new plugs wires and 02 sensors. what i would like to know is. my car has headers and my back 02 sensors have been tuned out, but my mechanic just has the back 02 wires zip tied to my spohn torque arm. there is no tape or caps on the end of the wires and i was wondering if when it rains out and the wires get wet could that be causing the car to run bad??? as soon as it dries up out the car will run great again. i have been chasing this for sometime now. i read a post where a guy took art every connection under the hood and cleaned them with electrical cleaner then put di-electric grease on all the connections. i spent 5 hours doing that,but it still happened when it rained out. the reason i think it might be the 02 sensor wires is i read that its just the codes that are turned off so the ses light doesn't come on. any help would be greatly appreciated.

Old Geezer

iTrader: (3)

The O2's should also have the "not reported" option turned on....The way it is now, the PCM is still getting input, but you are not seeing the SES lite.

MIKEY'S 2002 TA

iTrader: (24)

hi so if the option isn't turned off might be possible when it rains out that its causing my car to run bad then ???i would think when it was tuned that it would be turned off but who knows. any opinions or knowledge would be appreciated.
thanks,mike

MIKEY'S 2002 TA

iTrader: (24)

someone has to have the answer. i left a message for the guy who dyno tuned my car. it was about 6 months ago and i am not sure if he saved my file.

2xLS1

iTrader: (25)

You need to data log it when it's running bad. Anything else is just guessing.

BLK02WS6

iTrader: (2)

All the rear O2s do is tell whether the cats are doing their job - that won't cause a miss. Could be many things - like said above, need to get a data log of it...

MIKEY'S 2002 TA

iTrader: (24)

thanks. i will have to find someone with a data log and do it when its raining out.

gagliano7

I would say it is a bad coil. They tend to act up when it gets damp out.

MIKEY'S 2002 TA

iTrader: (24)

ya , i thought that,but car throws no codes. i checked all coils for cracks and maybe some bad wires and everything looks fine. i was gonna take a water bottle with the car running and spray the coils to see if i can get it to act up. all i know this is driving me nuts. i live in florida and we get a ton of rain.