Mazda CX-9 Grand Touring 2009 Manual page 1088

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Visually inspect for disconnected
or cracked fuel vapor hoses/tubes
between the intake manifold and
the following components:
CV solenoid valve
Charcoal canister
Fuel shut-off valve
Check for damage to the fuel-
filler pipe and the fuel tank.
Is a concern visually evident?
INSPECT FOR EVAP SYSTEM
LEAKS
Disconnect the EVAP return tube
from the intake manifold and plug
the EVAP return tube.
Connect the EVAP System Leak
Tester to the EVAP test port.
5
Perform the EVAP System Leak
Test. (See ENGINE CONTROL
SYSTEM OPERATION
INSPECTION [MZI-3.7] .)
Does the pressure stay above 1.99
kPa (PID FTP_H2O displays
"8")?
INSPECT FOR BLOCKAGE
BETWEEN CV SOLENOID VALVE
AND FUEL VAPOR HOSE JOINT
Turn the ignition switch to the
ON position (Engine off)
Using M-MDS tester, select the
Diagnostic Data Link.
6
Select the PCM.
Select the Active Command
Modes.
Select the Output Test Mode.
Close the CV solenoid valve
using the EVMV PID.
Pressurize the EVAP system to
3.48 kPa (PID FTP_H2O displays
"14").
2008 Mazda CX-9 Grand Touring
COMPONENT REMOVAL/INSTALLATION
[MZI-3.7] .)
Go to Step 7.
No
Yes Go to the next step.
Verify that the fuel-filler cap is installed correctly.
No Repair or install a new components if necessary. Go
Yes Go to the next step.
No Replace the fuel tank vapor line(s). Go to Step 8.
Go to the next step.
to Step 8.