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??
Apr 24, 2012 at 4:06 PM
rich code p0175
2002 FORD RANGER
TOM OLDS
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Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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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.
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.
Apr 24, 2012 at 5:05 PM
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