1999 Nissan Quest Repair Question
1999 Nissan Quest MISSING
1999 Nissan Quest 6 cyl Front Wheel Drive Automatic 146000 miles
The motor fine 4 5 or 6 miles even if running at WOT starts skipping and gets worse for a mile or 2 until it will almost stop have removed catalic conv drove still same skip but now not quiet as bad checked fuel press app, 38 lb on idle 43 when idled up no codes on dash such as check eng . un plugged MAF SENSOR to make sure light was wrking . Light works fine and code was correct,
Engine running rough or misfiring can be cause 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.
8.EGR valve that is leaking.
10.Throttle position sensor.
11.Idle air control valve.
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