1999 Honda Civic Code P0301 - Misfire on cylinder 1

1999 HONDA CIVIC
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STEPHANIEF
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Engine Performance problem
1999 Honda Civic 4 cyl Two Wheel Drive Manual

My 99 civic si hesitates once it warms up. Replaced plugs and wires. Still hesitates.
Oct 11, 2008 at 12:36 PM
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RASMATAZ
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Check spark plug/compression and injector for cyl. no. 1

Misfires 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.
Oct 11, 2008 at 12:42 PM