1991 Honda Civic

Tiny
MANUEL1010
  • MEMBER
  • 1991 HONDA CIVIC
Engine Performance problem
1991 Honda Civic 4 cyl Two Wheel Drive Manual

I have changed sparks plugs, cables ignition rotor, ignition coil, distributor cap, distributor, and still misfires I dont know what else to do
Tuesday, July 27th, 2010 AT 4:41 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine running rough or misfiring can be cause by the following:

1. Defective spark plug
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
10. Throttle position sensor.
11. Idle air control valve.
12. Engine compression problem
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Tuesday, July 27th, 2010 AT 5:38 PM

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