Questions & Answers for: Chevrolet p0303

...uo107 - lost communication with throttle actuator control module The U codes you can ignore. The P0303 means you have a misfire on cylinder #3. More information would be needed to make an accurate ...

Chevy Blazer P0303 and P0420 I have a 1999 Chevy Blazer, the check engine light (p0420 - catalyst efficiency below threshold) came on about 6 months ago. A mechanic told me not to worry about it. This

...is coming on. I took it to Checker Auto and had them run the diagnostic on it. Code came back as P0303, the guy who checked it said that means that cylinder 3 is misfiring. What could be the cause ...

code p0303 merci P0303 is misfire on cylinder#3. your car over heat?if No. check spark plug , spark plug wire, distributor rotor,and cap.

P0303 Error code on reader. Changed all spark P0303 Error code on reader. Changed all spark plugs and reset code. Check Engine Light re-appeared and now goes on and off. Still seems to stumble and act

Astro van MIL light is on. The code is P0303. P0303 is cylinder #3 misfire detected. Start by changing the spark plug. If that doesn't clear it then try changing the plug wire. If that doesn't

searching for youtube p0303 censor for chevrotel astro find p0303 censor that code is not a sensor code that is a missfire code , you have a miss fire in cylinder number 3 , check you spark plugs or ...

...problem. Just kind of comes and goes. I took it to Auto Zone and recieved 3 codes; c0040, p0300, p0303. The "C" code they are unable to look up in there system. Any suggestions would be greatly ...

97 chevy tahoe running rough update.... has codes P0141 and a Code P0303, which would cause the shake if not both? it has new plugs and wires but still misfire on #3. what should I look at first for ...

reason for fault p0303, p0306. computer showing fault p0303, p0306, cylinder 3 and 6 misfire thanks for all the info really helps me help you lolcould be plugs coil injector pcm cylinder dmg wiring ...