DIAGNOSTIC PROCEDURE
DTC P0455 (MZI-3.7) DIAGNOSTIC PROCEDURE
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-3.7]
.)
No
Go to the next step.
4
VISUALLY INSPECT FOR LARGE
EVAP SYSTEM LEAK
z
Check for the presence of a fuel-
filler cap. Do not tighten or check
for correct installation at this
time.
z
Verify that both the input port
vacuum hose and EVAP return
tube are attached to the CV
solenoid valve.
z
Verify that the CV solenoid valve
is properly attached to the
charcoal canister.
Yes
Repair or replace the EVAP components if
necessary. (See
FUEL TANK INSPECTION
[MZI-3.7]
.)
(See
FUEL TANK PRESSURE SENSOR
INSPECTION [MZI-3.7]
.)
(See
CHARCOAL CANISTER, CANISTER
VENT (CV) SOLENOID VALVE, AIR FILTER
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 223
© 2005 Mitchell Repair Information Company, LLC.
