paintball4fun21
15+ Year Contributor
- 168
- 0
- Jun 13, 2006
-
onalaska,
Wisconsin
My car is running lean while crusing only, especially on the highway. It will go from 14's to 15's to 18's then not even register on the wideband gauge and the car will start tugging. No boost leaks. Under WOT the AFR's are fine. Also the car will run a lot hotter while crusing when this happens. It will go from the middle of the temp gauge to in between the top 2 marks(almost overheating) then when I stop and idle or let off the gas the temps will lower. Im thinking o2 sensor? head gasket maybe? I replaced the water pump recently and thermostat