Mazda CX-7 2007 Workshop Manual page 180

STEP
6 LOCATE LEAK POINT
• Inspect the following for leakage using the
ultrasonic leak detector.
— Charcoal canister
— Catch tank
— Fuel filler cap
— EVAP hoses and pipes
— Fuel tank
• Is leakage found?
7 INSPECT EVAP SYSTEM LEAK DETECTION
PUMP
• Connect all disconnected connectors and
hoses.
• Place a clamp on the EVAP system leak
detection pump hose between the EVAP
system leak detection pump and air filter.
• Perform the evaporative system leak
inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the test result fail (red light turns on)?
8 CONFIRM EVAP SYSTEM LEAK DETECTION
PUMP LEAKAGE
• Remove the clamp.
• Perform the evaporative system leak
inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the test result fail (red light turns on)?
9 INSPECT FUEL PUMP UNIT INSTALLATION
• Remove the fuel tank.
• Visually inspect for damage, insufficient sealing
or a poorly installed pump unit.
• Is it normal?
10 PERFORM LEAK INSPECTION
• Connect all disconnected connectors and
hoses.
• Perform the evaporative system leak
inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the test result fail (red light turns on)?
11 VERIFY TROUBLESHOOTING OF DTC P0441
COMPLETED
• Start the engine and let it idle.
• Clear the DTC using the M-MDS.
• Turn the ignition switch off.
• Perform the "EVAP System Repair Verification
Drive Mode".
(See01-02-10 OBD-II DRIVE MODE[L3 WITH
TC])
• Is the PENDING CODE for this DTC present?
12 VERIFY AFTER REPAIR PROCEDURE
• Perform the "AFTER REPAIR PROCEDURE".
(See01-02-10 AFTER REPAIR
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?
End Of Sie
01-02–138
ON-BOARD DIAGNOSTIC [L3 WITH TC]
INSPECTION
Yes Repair leakage or replace the part, then go to Step 10.
No Go to the next step.
Yes Go to Step 9.
No Go to the next step.
Yes Replace the EVAP system leak detection pump, then go to
Step 10.
No Go to the next step.
Yes Go to the next step.
No Repair or replace the fuel tank or sealing, then go to the
next step.
Yes Leakage still exists. Locate leak the point and repair.
Then go to the next step.
No Go to the next step
Yes Replace the PCM, then go to the next step.
No Go to the next step.
Yes Go to the applicable DTC inspection.
(See01-02-13 DTC TABLE[L3 WITH TC].)
No Troubleshooting completed.
ACTION