All six cylinder missfire for 97 Toyota 4Runner

Tiny
AZAMPOGNA
  • 1997 TOYOTA 4RUNNER
  • 160,000 MILES

Plugged in obd tool and all six cylinders are missfiring

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Saturday, December 17th, 2011 AT 6:06 PM

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Tiny
RASMATAZ
  • MEMBER

Engine running rough or misfiring can be cause by the following:

http://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

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Saturday, December 17th, 2011 AT 6:17 PM

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