P0172 REPAIR

2001 Dodge SX

Tiny

blastn

June, 26, 2010 AT 1:56 AM

2001 Dodge SX 6 cyl Front Wheel Drive Automatic 98000 miles

need to no mow to repair a code p0172 engine running to rich

FOUND 50 RELATED QUESTIONS

P0172, P0420

14 ANSWERS

P0172...

3 ANSWERS

1 Answer

Tiny

rasmataz

June, 26, 2010 AT 4:55 AM

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.

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Fuel Pump Replacement Done Right