2001 Dodge SX p0172 repair

98,000 MILES • 6 CYL • FWD • AUTOMATIC
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BLASTN
  • MEMBER
  • 1 POST
need to no mow to repair a code p0172 engine running to rich
Jun 25, 2010 at 6:56 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Probable causes of an engine running rich are as follows:

1.Fuel pressure not within specs.Can be cause by restricted fuel return line or defective fuel pressure regulator.
2.Defective Oxygen Sensors.
3.Leaking injectors.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system.
Jun 25, 2010 at 9:55 PM
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