1989 Ford Bronco miss in engine

1989 FORD BRONCO
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MARC3077
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Engine Performance problem
1989 Ford Bronco 6 cyl Two Wheel Drive Manual

i have replaced the o2 sensor the plugs n wires the thermo stat and it still misses what other sensor would cause this? it only misses when i drive for a few miles?
Jul 30, 2010 at 1:04 PM
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RASMATAZ
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Engine running rough or misfiring can be caused by the following:

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.
Jul 30, 2010 at 4:09 PM