Mazda CX-9 Grand Touring 2007 Manual page 904

2007 ENGINE PERFORMANCE Symptom Troubleshooting (MZI-3.5) - CX-9
3
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.
NO.28 FUEL FILLING SHUT OFF CONCERNS [MZI-3.5]
DESCRIPTION AND POSSIBLE CAUSES
28 FUEL FILLING SHUT OFF CONCERNS
DESCRIPTION
POSSIBLE CAUSE
2007 Mazda CX-9 Grand Touring
If vehicle is repaired, troubleshooting completed.
If vehicle is not repaired or additional diagnostic information is not
available, replace the PCM.
(see PCM REMOVAL/INSTALLATION [MZI-3.5] .)
Fuel does not shut off properly.
Clogged EVAP pipes
Nonreturn valve malfunction
Fuel shut-off valve malfunction
Fuel nozzle malfunction
Fuel nozzle is not inserted correctly.
WARNING:
The following troubleshooting flow chart contains the fuel system
diagnosis and repair procedures. Read the following warnings
before servicing the fuel system:
Fuel vapor is hazardous. It can easily ignite, causing serious
injury and damage. Always keep sparks and flames away
from fuel.
Fuel line spills and leakage are dangerous. Fuel can ignite
and cause serious injuries or death and damage. Fuel can
also irritate skin and eyes. To prevent this, always complete
"BEFORE REPAIR PROCEDURE" and "AFTER REPAIR
PROCEDURE" described in this manual.
(see BEFORE REPAIR PROCEDURE [MZI-3.5] .)
Nonreturn valve does not operate
properly:
Replace nonreturn valve.