1996 Opel Astra enjine misfire

1996 OPEL ASTRA
215,000 MILES • 4 CYL • FWD • MANUAL
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MEGIM22
  • MEMBER
  • 3 POSTS
engine misfire and backfire threw the
intake manifold.it has a crank triger and a knock sensor.20seh opel engine
Mar 7, 2010 at 7:19 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Do you have a check engine light and when was your last tune-up??

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
Mar 7, 2010 at 8:10 PM
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