1999 Honda Civic P0303

1999 HONDA CIVIC
160,000 MILES • 4 CYL • 2WD • AUTOMATIC
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FLGOMEZ
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  • 2 POSTS
I have a misfire on cylinder 3 I start the engine Cylinder 3 is working fine and then after few minutes start failing and the MIL is blinking I ready change the injectors, sparks and sparkcables any Idea please help
Jan 6, 2010 at 9:37 PM
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RASMATAZ
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  • ASE Certified Mechanic
Hi flgomez, Welcome to 2carpros and TY for the donation and selecting us as your auto repair site Feel free to ask questions at anytime

P0303 On a specific cylinder misfire -you have replaced sparkplug and injector for no.3 Now check the compression for no.3 both dry and wet tests

Engine misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
Jan 7, 2010 at 2:09 AM
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