1994 Infiniti G20 Misses at idle speed

1994 INFINITI G20
208,000 MILES • 4 CYL • FWD • AUTOMATIC
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DBAIRAMIAN
  • MEMBER
  • 1 POST
at 800 to 1000RPM or idle speed engine misses or shakes, but above 1500RPM the misses or shakes is minimal.
Feb 20, 2010 at 2:45 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
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.
Feb 20, 2010 at 3:53 PM
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