1988 Dodge Van

1988 DODGE VAN
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KEVEN JEFFRIES
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Engine Performance problem
1988 Dodge Van V8 All Wheel Drive Automatic

what makes this vehicle burn rich?
Aug 28, 2010 at 12:40 AM
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RASMATAZ
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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.
Aug 28, 2010 at 2:55 AM