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Home >> Jeep >> 2005 >> Wrangler X, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 627 (Powertrain Diagnostic Procedures - DRIVEABILITY - Gas - Symptom & Diagnostic Tests (DTCS P0031 To P1899)) >> DRIVEABILITY - Gas - Diagnostic Tests >> P0172-1/1 Fuel System Rich; P0175-2/1 Fuel System Rich (Gas - Except NGC) >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2004 Dodge Pickup and 2004 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. GOOD TRIP EQUAL TO ZERO
  2. INTERMITTENT CONDITION
  3. O2 SENSOR
  4. O2 SENSOR SIGNAL CIRCUIT OPEN
  5. O2 SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
  6. O2 SENSOR HEATER OPERATION
  7. EVAP SYSTEM OPERATION
  8. TP SENSOR VOLTAGE GREATER THAN 0.92 OF A VOLT WITH THROTTLE CLOSED
  9. TP SENSOR SWEEP
  10. FUEL FILTER/PRESSURE REGULATOR
  11. MAP SENSOR OPERATION
  12. ECT SENSOR OPERATION
  13. ENGINE MECHANICAL PROBLEM
  14. PCM
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