intermittent misfire vq30de?

1995 INFINITI I30
150,000 MILES • 6 CYL • FWD • AUTOMATIC
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DALEWHITT3
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i have a 1995 infiniti I30/nissan maxima with a vq30de engine....well the car started to have a intermittent misfire...no CEL (check engine light) would come when this happens...it only happens when the car is warmed up and driving for a while....i have changed my spark plugs but that didnt do the trick....when the car does misfire i check the diagnose mode on the ecu and it flashes a 0201 code - engine circuit code....but doesnt give me the exact cylinder...could this be a faulty coil plug?
Jul 18, 2011 at 11:52 PM
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RASMATAZ
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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

Note: If it doesn't apply disregard it-

Jul 19, 2011 at 12:33 AM
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