Ok, my car has been a pain in my ass for the last 2 months now. It won't accelerate worth a damn after its warmed up. Today I unplugged the O2 sensor from its harness and it still drove the same when warmed up. Am I supposed to notice a difference between when the oxy sensor is plugged in or unplugged?
-
-
not to much, but it causes the engine to run in ''loop'' mode. and if your O2 sensor is bad it will give a CEL. later. -
Well do you know if an O2 sensor will lean out a system to the point where it pings on acceleration. I'm thinking its one of the systems that works when warm like EGR, IAC, or the O2... I never have problems when the car is cold.Comment
-
It won't be your O2 you will definately get a MIL (tired of the CEL b.s.) from an O2
Comment
-
Well I think it had a code 1 before. But i reset the battery so i donno. I'm just wondering if an O2 sensor could lean it out that much.Comment
-
how many miles on your car? is your IAC valve screen clean? another possibly is your engine coolant temperature sensor is going bad? or vaccum hose/gasket leak?
cheers tomComment
-
if he had a vacuum leak he would probly know, maybe. cause it would idle funny.
it could be that tho cause my vacuum hose to my intake was off by mistake and i felt a lag in acceleration.
is ur car an ex by any chance?
Comment
-
My car is a 91 LX, Auto, 130k miles. I cleaned out my IAC valve about 3 months ago. I was thinking it could be along the lines of thermostat or coolant temp sensor, but its not running hot anymore since I bled the coolant. The gauge hasn't gone over half way.Comment
-
bump i need an answerComment
-
................ Have you checked your compression? Just because it feels like your car is lagging doesn't mean it's running lean.........Comment
-
Comment