1999 Toyota Camry Idle

Tiny
MNANA8199
  • MEMBER
  • 1999 TOYOTA CAMRY
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 187,000 MILES
The car is idling rough. I have changed the spark plugs and spark plug wires
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Wednesday, July 28th, 2010 AT 9:00 AM

1 Reply

Tiny
RASMATAZ
  • MEMBER
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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Wednesday, July 28th, 2010 AT 9:02 AM

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