Originally posted by mart_svt:
Ok, I have a 98 CSVT and I have done some research regarding these two codes i keep getting. After the car is fully warmed up, the CEL comes on and when the A/C is on the car seems to idel funny, and sometimes die out. The problem seems to be less with A/C off. I have heard that the cats may be failing and a list of other problems. Then i have heard simply that the O2 sensors are bad. The P1151 code indicates bank 2 upper sensor is lean. This seems to be an easy fix. Maybe i should replace bank 1 upper sensor as well even though it is a pain to get to. If cats are going bad, will mileliminators help or just not trigger the CEL? I live in FL and during the winter, (60 degrees) the CEL never comes on. It seems the heat and humidity triggers these codes. Other than that, car drives fine with no loss of power. I currently have 73K miles on the car. I like the cheap and easy fixes first! Thanks...



what that tell you is you need to change the cat convert. and O2 sensor the same time. I did clean up before on the cat, but it only last for a little bit. the best way is to change a new cat convert and O2 sensor so it won't trigger the CEL.the eliminator will work for few miles, but you still will trigger teh CEL either way. trust me, i been there.