DIAGNOSTIC PROCEDURE
DTC P0455 (MZI-3.5) DIAGNOSTIC PROCEDURE
CONDITION
EVAP system when there is -1.74 kPa (PID FTP_H2O displays "-7.0" or
less vacuum for a 30 seconds evaluation time.
POSSIBLE CAUSE
z
After-market EVAP hardware (such as fuel-filler cap) not conforming to
required specifications.
z
Disconnected or cracked fuel chopping timer tube, CV solenoid valve outlet
tube or EVAP return tube.
z
CV solenoid valve stuck closed
z
Damaged or missing fuel-filler cap.
z
Insufficient fuel-filler cap installation.
z
Loose fuel vapor hose/tube connections to EVAP system components.
z
Blockages or restrictions in fuel vapor hoses/tubes.
z
Rollover valve blocked or fuel shut-off valve.
z
CV solenoid valve stuck open.
z
Mechanically inoperative Fuel tank pressure sensor.
z
Damaged charcoal canister.
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA
HAS BEEN RECORDED
z
Has FREEZE FRAME DATA
been recorded?
Yes
Go to the next step.
No
Record FREEZE FRAME DATA on the
repair order, then go to the next step.
2
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
z
Verify related Service Bulletins
and/or on-line repair information
availability.
z
Is any related Service Bulletins
available?
Yes
Perform repair or diagnosis according to
the available Service Bulletins.
z
If the vehicle is not repaired, go to
the next step.
No
Go to the next step.
3
VERIFY RELATED PENDING
CODE OR STORED DTCs
z
Turn the ignition switch off then to
the ON position (Engine off).
z
Verify related pending code or
stored DTCs.
z
Are other DTCs present?
Yes
Go to the appropriate DTC
troubleshooting.
(See
DTC TABLE [MZI-3.5]
.)
No
Go to the next step.
4
VISUALLY INSPECT FOR LARGE
Yes
Repair or replace the EVAP components if
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:33 AM
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