help. i need to find this problem. ok im driving normal everything is fine. then all of a sudden my car starts to backfire and bog real bad. ok no power at all when it does this and some times i can floor it and it will go back to working fine then if i let go of the throttle it will go back to bogging. i got it scanned and i got these codes.

p0123
p0132
p0135
p0155
p0405
p0481
p0132
p0140
p0160

if anyone can give me any clue to why it is doing this please i will try anything. it is a head/cam car with lt headers uncoated. it was not doing this until recently though. please any suggestions on where to start will help.

 

bump ttt

 

You would probably get a better response putting this thread in the PCM tuning section.....