Mechanics

I HAVE A WITH 3.0L V-6 HAS A CODE P0175 RICH CODE. HAVE REPLACED 02SENSORS,MAF, FUEL PRESSURE IS 70PSI AT RAIL ANY IDEAS?

2002 Ford Ranger • 99,000 miles

2002 ford ranger 3.0l v-6 4x4 with rich code p0175.I have replaced 02sensors, maf sensor. Fuel [pressure at rail is 70 psi any ideas?
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Tom olds
April 24, 2012.



Fuel pressure specs: 60-65 psi both KOER and KOEO

Probable causes of an engine running rich are as follows: 1. Excessive fuel pressure can be cause by restricted fuel return line

2. Defective Oxygen Sensors.

3. Leaking injectors and fuel pressure regulator.

4. Coolant temperature sensor out of calibration.

5. Restricted air intake system.

Rasmataz
Apr 24, 2012.