1991 Isuzu Stylus Repair Question
Topics covered: Sensor, Spark, Spark plugs.
Mileage: 255,043 miles.
Mileage: 255,043 miles.
Asked on April 14, 2011
91 isuzu stylus
I was driving down the hight way no problems with it then the car starts******** then my check engin light comes on the idle changes or it just****** at what ever speed i go i replaced alltinator fuel filter cap rotor spark plugs a wires but it went to the coast and back with no problem and when it****** i get bad mph what does this mean
Answer
Replied on April 16, 2011
Could be caused by one of the following below
Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.
Note:If it doesn't apply disregard it and keep testing.