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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 103 (Powertrain Diagnostic Procedures) >> Diagnostic Information And Procedures >> DRIVEABILITY - NGC - Diagnostic Tests >> P0172-Fuel System 1/1 Rich, P0175-Fuel System 2/1 Rich >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
  1. GOOD TRIP EQUAL TO ZERO
  2. O2 SENSOR HEATER OPERATION
  3. O2 SENSOR
  4. O2 SIGNAL CIRCUIT
  5. O2 RETURN CIRCUIT
  6. THROTTLE POSITION SENSOR VOLTAGE GREATER THAN 0.92 VOLTS WITH THROTTLE CLOSED
  7. THROTTLE POSITION SENSOR SWEEP
  8. MAP SENSOR
  9. ECT SENSOR
  10. EVAP PURGE SOLENOID OPERATION
  11. ENGINE MECHANICAL PROBLEM
  12. FUEL FILTER/PRESSURE REGULATOR (HIGH)
  13. PCM
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