z
Verify kinks or bends in the fuel
vapor hoses and tubes.
z
Visually inspect the charcoal
canister inlet port, CV solenoid
valve, EVAP dust separator or the
outlet hose for contamination or
foreign material.
z
Is a concern evident?
Repair the hoses, tubes or components if
necessary. Go to Step 9.
No
Go to the next step.
5
PERFORM EVAP LEAK TEST
z
Connect the EVAP Leak Tester to
the fuel filler pipe.
z
Close the purge solenoid valve
using the EVMV PID.
z
Pressurize the EVAP system to
3.48 kPa
(PID FTP_H2O displays
"14").
z
Does the pressure reach
3.48 kPa
(PID FTP_H2O displays "14")?
Yes
Go to the next step.
No
Check to see if the CV solenoid valve is
stuck open. Replace if necessary.
(see
CHARCOAL CANISTER,
CANISTER VENT (CV) SOLENOID
VALVE, AIR FILTER COMPONENT
REMOVAL/INSTALLATION [MZI-
3.5].
)
Go to Step 9.
6
INSPECT WHETHER CV
SOLENOID VALVE IS STUCK
CLOSED
z
Open the purge solenoid valve
using the EVMV PID.
z
Does the pressure drop
immediately?
Yes
Go to the next step.
No
Check to see if the CV solenoid valve is
stuck closed. Replace if necessary.
(see
CHARCOAL CANISTER,
CANISTER VENT (CV) SOLENOID
VALVE, AIR FILTER COMPONENT
REMOVAL/INSTALLATION [MZI-
3.5].
)
Go to Step 9.
7
INSPECT FOR FUEL TANK
PRESSURE SENSOR PID
WITHOUT PRESSURE APPLIED
z
Disconnect the charcoal canister
outlet tube at the charcoal canister.
z
Turn the ignition switch to the ON
position (Engine off).
z
Using M-MDS tester, select
Diagnostic Data Link.
z
Select PCM.
z
Select Active Command Modes.
z
Access FTP V PID and record the
reading.
z
Is the reading between 2.40 to
Yes
Go to the next step.
No
Replace the evaporative hose component.
(see
FUEL TANK PRESSURE
SENSOR INSPECTION [MZI-3.5]
.)
Go to the next step.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:37 AM
Page 364
© 2005 Mitchell Repair Information Company, LLC.
