Mazda CX-9 Grand Touring 2007 Manual page 563

2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
displays "13.80"and "14.20")?
9 INSPECT FOR LEAKS IN
COMPLETE EVAP SYSTEM
Verify CV solenoid valve is
closed.
Verify system is pressurized to
3.48 kPa (14 in-H2O).
Using the ultrasonic leak detector,
check the following EVAP system
locations:
EVAP return tube to CV
solenoid valve.
CV solenoid valve to
charcoal canister-CV
solenoid valve component.
Charcoal canister-CV
solenoid valve component
to fuel tank.
fuel-filler cap and fuel-filler
pipe.
Is a leak detected?
10 INSPECT FOR SMALL LEAK
FROM EVAP RETURN TUBE TO
CHARCOAL CANISTER
Disconnect the fuel tank vapor
tube at the fuel fuel vapor hose
joint and plug the opening in the
hose joint.
Turn the ignition switch to the ON
position (Engine off).
Close CV solenoid valve using the
EVAPCV PID from the output test
mode.
Pressurize the EVAP system to
3.48 kPa (14in-H2O).
Using the ultrasonic leak detector,
check the EVAP system from the
intake manifold to the CV
solenoid valve.
Is a leak detected?
11 INSPECT FOR SMALL LEAK
2007 Mazda CX-9 Grand Touring
Yes
No
Yes
No
Yes
Repair or replace the component if
necessary. Go to Step 12.
Discontinue pressurizing the system. Go to
the next step.
Repair or replace the component if
necessary. Go to Step 12.
Open the CV solenoid valve. Go to the
next step.
Repair or install a new component. Go to