NO.20 FUEL ODOR (IN ENGINE COMPARTMENT) [MZI-3.5]
DESCRIPTION AND POSSIBLE CAUSES
Measure fuel line pressure during idle.
Is fuel line pressure correct during
idle?
(see
FUEL LINE PRESSURE
INSPECTION [MZI-3.5]
.)
fuel pump unit.
(see
FUEL PUMP UNIT
REMOVAL/INSTALLATION [MZI-
3.5]
.)
High:
Replace the fuel pump unit.
(see
FUEL PUMP UNIT
REMOVAL/INSTALLATION [MZI-
3.5]
.)
7
Perform the spark test.
(See
ENGINE CONTROL
SYSTEM OPERATION
INSPECTION [MZI-3.5]
.)
Is strong blue spark visible at each
cylinder?
Yes
Inspect the CMP sensor.
(see
CAMSHAFT POSITION (CMP)
SENSOR INSPECTION [MZI-3.5].
)
No
Repair or replace the malfunctioning
part according to spark test result.
8
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
available, replace the PCM.
(see
PCM REMOVAL/INSTALLATION [MZI-3.5]
.)
20
FUEL ODOR (IN ENGINE COMPARTMENT)
DESCRIPTION
Gasoline fuel smell or visible leakage
z
Excessive fuel pressure
z
Purge solenoid valve malfunction
z
Fuel tank vent system blockage
z
Charcoal canister malfunction
z
Fuel leakage from fuel system
WARNING:
The following troubleshooting flow chart contains fuel system diagnosis
and repair procedures. Read following warnings before servicing fuel
system:
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE Symptom Troubleshooting (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:27:37 AM
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