in gear ihave 6500 rpm and misses

2000 SATURN STATION WAGON
267,000 MILES
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WILLIAMMOO
  • MEMBER
  • 8 POSTS
ruff changed o2 and tps
Dec 17, 2011 at 8:14 PM
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RASMATAZ
  • ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
https://www.2carpros.com/articles/engine-misfires-or-runs-rough

1.Defective spark plugs

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.Manifold absolute pressure sensor

12.Mass Airflow Sensor

13.Idle air control valve
Dec 17, 2011 at 8:18 PM
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