z
Press STOP (#4) on M-MDS
tester to open the EVMV.
z
Does the pressure drop
immediately?
7
INSPECT FOR
MALFUNCTIONING CV
SOLENOID VALVE OR FUEL
TANK PRESSURE SENSOR
z
Were both P0455 and P1443
present at Step 1?
Yes
Replace the CV solenoid valve.
(See
CHARCOAL CANISTER, CANISTER
VENT (CV) SOLENOID VALVE, AIR FILTER
COMPONENT REMOVAL/INSTALLATION
[MZI-3.7]
.) .) Go to the next step.
No
Replace the evaporative hose component.
(See
FUEL TANK REMOVAL/INSTALLATION
[MZI-3.7]
.)
Go to the next step.
8
EVAP SYSTEM LEAK TEST
z
Connect all disconnected
connectors and hoses.
z
Perform the EVAP System Leak
Test. (See
ENGINE CONTROL
SYSTEM OPERATION
INSPECTION [MZI-3.7]
.)
z
Are the test results normal?
Yes Go to the next step.
No
Leakage still exists. Locate leak point and repair.
Repeat this step.
9
VERIFY TROUBLESHOOTING OF
DTC P0455 HAS BEEN
COMPLETED
z
Verify that all disconnected
connectors are reconnected.
z
Turn the ignition switch to the
ON position (Engine off).
z
Clear the DTC from the PCM
memory using the M-MDS.
z
Start the engine and run it at idle.
z
Retrieve DTCs using the M-
MDS.
z
Is the PENDING CODE for this
DTC present?
Yes Replace the PCM, then go to the next step. (See
PCM REMOVAL/INSTALLATION [MZI-3.7]
.)
No
Go to the next step.
10
VERIFY AFTER REPAIR
PROCEDURE
z
Perform the "AFTER REPAIR
PROCEDURE". (See
AFTER
REPAIR PROCEDURE [MZI-
3.7]
.)
Yes
Go to the applicable DTC inspection. (See
DTC
TABLE [MZI-3.7]
.)
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:38 AM
Page 225
© 2005 Mitchell Repair Information Company, LLC.
