DIAGNOSTIC PROCEDURE
DIAGNOSTIC PROCEDURE
(see AFTER REPAIR PROCEDURE [MZI-3.5] .)
CAUTION:
z
Disconnecting/connecting quick release connector without
cleaning it may cause damage to fuel pipe and quick release
connector. Always clean quick release connector joint area before
disconnecting/connecting, and make sure that it is free of foreign
material.
STEP INSPECTION
ACTION
1
Connect the M-MDS to the DLC-2.
Turn the ignition switch to the ON
position (Engine off).
Retrieve any DTCs.
Are there any DTCs displayed?
Yes
DTC is displayed:
Go to the appropriate DTC inspection.
(see
DTC TABLE [MZI-3.5]
.)
No
No DTC is displayed:
Go to the next step.
2
Remove the fuel-filler pipe.
Make sure the nonreturn valve is
installed properly.
Inspect nonreturn valve operation.
Is the nonreturn valve normal?
Yes
Inspect for the following:
z
Improper use of fuel nozzle
z
Fuel is not inserted correctly.
z
Inspect fuel shut-off valve.
No
Nonreturn valve is installed
improperly:
z
Reinstall the nonreturn valve to
proper position.
Nonreturn valve does not operate
properly:
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Replace the nonreturn valve.
3
z
Verify test results.
{
If normal, return to diagnostic index to service any additional symptoms.
(See
ENGINE SYMPTOM TROUBLESHOOTING [MZI-3.5]
.)
{
If malfunction remains, inspect related Service Bulletins and/or On-line Repair
Information and perform repair or diagnosis.
z
If vehicle is repaired, troubleshooting completed.
z
If vehicle is not repaired or additional diagnostic information is not
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE Symptom Troubleshooting (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:27:38 AM
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