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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 335 (Symptom Troubleshooting (Engine Control System L3)) >> No. 27 Fuel Refill Concerns >> Diagnostic procedure

Diagnostic procedure

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
NO. 27 FUEL REFILL CONCERNS DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 Connect WDS or equivalent to DLC-2.
Turn ignition switch to ON position (Engine off).
Retrieve any DTCs.
Are there any DTCs displayed?		 Yes DTC is displayed: 
Go to appropriate DTC test.
No No DTC is displayed: 
Go to the next step.
2 Remove fuel-filler pipe.
Make sure nonreturn valve is installed properly.
Inspect nonreturn valve operation.
Is nonreturn valve normal?		 Yes Inspect for the following:
  • Improper use of fuel nozzle
  • Inadequate fuel filling speed
No Nonreturn valve is installed improperly: 
  • Reinstall nonreturn valve to proper position.

Nonreturn valve does not operate properly: 
  • Replace nonreturn valve.
3 Verify test results.
  • If okay, return to diagnostic index to service any additional symptoms.
  • If malfunction remains, inspect related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis.
    • If vehicle is repaired, troubleshooting completed.
    • If vehicle is not repaired or additional diagnostic information is not available, reprogram PCM if later calibration is available. Retest.
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