Cylinder 3 misfire on my 2003 Honda Civic LX?
Cylinder 3 misfire on my 2003 Honda Civic LX?
Added (1). Hello!
I drive a 2003 Honda Civic LX (the specifications are standard). A check engine light recently popped up on my car a few days ago and the heat gauge shot up real high (after about 10-15 minutes it would drop back down to normal levels). I took it to a shop to get it checked out and the guy working there said that it was a cylinder 3 misfire (code P0303).
Could anyone explain why the heat gauge shot up? How long can I drive it in this condition? Is the cause due to lack of tune-up?
Pull the cylinder 3 spark plug and smell it. If it smells like gasoline, then there's a spark problem (bad wire, or coil, or plug). If it doesn't smell like gas, then verify spark, if spark is good, then swap injector 3 with injector 4, and see if the problem moves to cylinder 4, if it does, replace the injector.
Seems like you have air in the cooling system or the engine thermostat is sticking.P0303 would be anything from a defected spark plug, a coil, an injector or a low compression cylinder or a defected PCM. Check them out.
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