when i start the car shakes and black smoke come out tail pipe then it idle high
Jun 25, 2010 at 5:17 PM
1994 Saturn SL1
1994 SATURN SL1
AAJR1971
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Probable causes of an engine running rich are as follows:
1.Excessive fuel pressure can be cause by restricted fuel return line or defective fuel pressure regulator.
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system.
1.Excessive fuel pressure can be cause by restricted fuel return line or defective fuel pressure regulator.
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system.
Jun 25, 2010 at 5:23 PM