ERRATIC SPARK/MISFIRE

1990 Eagle Talon

Tiny

bubba8712

February, 15, 2011 AT 4:42 AM

1990 Eagle Talon 2.0 DOC idles rough, erratic spark(via timing light) throughout RPM range. Less so in the higher rpms. Assuming the wires and plugs are good, what would cause this?

FOUND 1062 RELATED QUESTIONS

1 Answer

Tiny

rasmataz

March, 18, 2011 AT 7:42 PM

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

Note: If it doesn't apply disregard it-

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