2002 Ford Ranger Repair Question
I have a 2002 ford ranger with 3.0l v-6 has a code p0175 rich code. have replaced 02sensors,maf, fuel pressure is 70psi at rail any ideas?
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.
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