paroxysm419
New Member
- Joined
- June 4, 2007
- Messages
- 6
- Reaction score
- 0
- City, State
- chicago il
- Year, Model & Trim Level
- 1996
Does anybody know why my Cat monitor won't reset? i replaced the upstream o2 sensor then cleared the p0153 code with a scan tool. afterwards 3 monitors were not ready: o2 sensor, o2 heater and cat, but i had no codes. my coolant temperature wasn't heating up at all (i have a huge radiator with a towing package), so i put a piece of cardboard in front of the radiator. shortly after that my o2 sensor and o2 heater monitors reset, but i've been driving it for over a week now, even gone through the lengthy drive cycle described in the manual, and my catalyst sensor still won't reset. so i still don't have any codes, but i can't take the test until this monitor resets.
i've read somewhere that if the downstream o2 sensor is a little out of whack that it could be just enough to throw off the catalyst test, but not enough to give you an o2 sensor code. could this be the culprit? i have 215,000 miles on it.
Any help would be greatly appreciated.
Andy
i've read somewhere that if the downstream o2 sensor is a little out of whack that it could be just enough to throw off the catalyst test, but not enough to give you an o2 sensor code. could this be the culprit? i have 215,000 miles on it.
Any help would be greatly appreciated.
Andy