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2002 Nissan Sentra Misfire

Tiny
CALO182
  • MEMBER
  • 2002 NISSAN SENTRA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 195,000 MILES
My Nissan Sentra 2002 4cyl misfires only when it starts and the engine is cold. It has a very rough start and the idle gets very low when I put it in Drive.

I already change the spark plugs.
Tuesday, May 11th, 2010 AT 4:31 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine running rough or misfiring can be cause by the following-inspect and test all the following below:
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.
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Wednesday, May 12th, 2010 AT 3:16 AM

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