P0303 Cylinder 3 misfire on Toyota Corolla 06.?

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P0303 Cylinder 3 misfire on Toyota Corolla 06.?

Postby farly » Fri Sep 02, 2011 1:34 pm

I am currently getting a check engine light with the following code "p0303". Upon researching I found on that the computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #3. Upon first reversing I noticed the engine stumbling, Then on acceleration the same and maybe when in low gear. I hear alot of popping from the exhaust too.

One thing I wish to mention is my car (Toyota Corolla 2006) ran fine. Yesterday I sprayed the engine bay down with a power washer but didnt aim it directly into anything or too close. A friend had a similar problem on the same car and said the coil went bad and there is a case water may be inside the cylinder? Also a spark plug might be bad as well.. I have no idea and don't want to take it to a shop and get robbed so I want some knowledge before I go.
farly
 
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P0303 Cylinder 3 misfire on Toyota Corolla 06.?

Postby fychan65 » Fri Sep 02, 2011 1:35 pm

sounds like you shorted out cylinder #3 coil pack.
fychan65
 
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P0303 Cylinder 3 misfire on Toyota Corolla 06.?

Postby kamron77 » Fri Sep 02, 2011 1:40 pm

Spark plug, if nothing else you can rule out the cheap fix, but my money is on the plug. Good luck.
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