Mazda Protege 5. Manual — part 155
EMISSION SYSTEM
01–16–10
CANISTER DRAIN CUT VALVE (CDCV) INSPECTION
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Simulation Test
1. Carry out the “Evaporative Emission Control System Inspection”. (See 01–03A–56 Evaporative System Leak
Inspection Using Vacuum Pump.) (See 01–03B–55 Evaporative System Leak Inspection Using Vacuum
Pump.)
•
If not as specified, perform the following inspection for the CDCV.
Airflow Inspection
Note
•
Perform the following test only when directed.
1. Disconnect the negative battery cable.
2. Remove the CDCV. (See 01–16–9 CANISTER
DRAIN CUT VALVE (CDCV) REMOVAL/
INSTALLATION.)
3. Inspect airflow between the ports under the
following conditions.
•
If not as specified, replace the CDCV.
•
If as specified but the “Simulation Test” is
failed, inspect evaporative hoses for improper
routing, kinks or leakage, and carry out the
“Circuit Open/Short Inspection” and repair or
replace the parts if necessary.
Circuit Open/Short Inspection
1. Remove the PCM.
2. Connect the SST (104 Pin Breakout Box) to the
PCM as shown.
3. Tighten the connector attaching screw.
Tightening torque
7.9—10.7 N·m {80—110 kgf·cm, 69.5—95.4
in·lbf}
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EMISSION SYSTEM
01–16–11
01–16
4. Inspect for an open or short circuit in the following
wiring harnesses by probing the applicable
sensor and SST (104 Pin Breakout Box) terminals
with ohmmeter leads.
Open circuit
•
GND circuit (CDCV connector terminal B and
PCM connector terminal 18 through common
connector)
•
Power circuit (CDCV connector terminal A
and main relay connector terminal D)
Short circuit
•
GND circuit (CDCV connector terminal B and
PCM connector terminal 18 through common
connector to GND)
•
Power circuit (CDCV connector terminal A
and main relay connector terminal D to GND)
5. Install the CDCV.
6. Connect the negative battery cable.
End Of Sie
CATCH TANK INSPECTION
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1. Remove the catch tank.
2. Plug the purge solenoid valve side port of the catch tank.
3. Blow from the charcoal canister side port and verify that there is no air leakage from the case.
•
If not as specified, replace the catch tank.
End Of Sie
PURGE SOLENOID VALVE REMOVAL/INSTALLATION
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1. Disconnect the negative battery cable.
2. Remove in the order indicated in the table.
3. Install in the reverse order of removal.
Vacuum Hose Installation Note
1. Install the vacuum hose until it contacts the stopper.
Evaporative Hose Installation Note
1. Attach the evaporative hose until it contacts the stopper.
End Of Sie
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1
Evaporative hose
(See 01–16–11 Evaporative Hose Installation Note)
2
Vacuum hose
(See 01–16–11 Vacuum Hose Installation Note)
3
Purge solenoid valve
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EMISSION SYSTEM
01–16–12
PURGE SOLENOID VALVE INSPECTION
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Airflow Inspection
Note
•
Perform the following test only when directed.
1. Remove the purge solenoid valve. (See 01–16–11
PURGE SOLENOID VALVE REMOVAL/
INSTALLATION.)
2. Inspect airflow between the ports under the
following conditions.
•
If not as specified, replace the purge solenoid
valve.
•
If as specified, inspect the vacuum hoses for
improper routing, kinks or leakage, and carry
out the “Circuit Open/Short Inspection” and
repair or replace the parts if necessary.
Circuit Open/Short Inspection
1. Remove the PCM.
2. Connect the SST (104 Pin Breakout Box) to the
PCM as shown.
3. Tighten the connector attaching screw.
Tightening torque
7.9—10.7 N·m {80—110 kgf·cm, 69.5—95.4
in·lbf}
4. Inspect for an open or short circuit in the following
wiring harnesses by probing the applicable
sensor and SST (104 Pin Breakout Box) terminals
with ohmmeter leads.
Open circuit
•
Power circuit (purge solenoid valve connector
terminal A and main relay connector terminal
D through common connector)
•
Control circuit (purge solenoid valve
connector terminal B and PCM connector
terminal 67 through common connector)
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EMISSION SYSTEM
01–16–13
01–16
Short circuit
•
Power circuit (purge solenoid valve connector terminal A and main relay connector terminal D through
common connector to GND)
•
Control circuit (purge solenoid valve connector terminal B and PCM connector terminal 67 through
common connector to GND)
5. Install the purge solenoid valve.
6. Connect the negative battery cable.
End Of Sie
FUEL-FILLER CAP INSPECTION
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leakage inspection
1. Perform the following SST (Evaporative Emission System Tester MZ254AT3641) self-test.
Note
•
If the tester does not work correctly during self-test, see the tester operators manual for more detailed
procedures.
(1) Verify the gas cylinder valve is closed and the control valve located on the tester is in the TEST position. All
tester display should be off at this time.
(2) Connect the long hose (part of SST) to the tester.
(3) Connect the manifold assembly (part of SST)
to the long hose as shown.
(4) Open the gas cylinder valve and verify the
gas cylinder regulator left gauge reads 10 to
12 psi (preset at factory).
•
If not, see the tester operators manual to
contact tester manufacturer.
(5) Press the ON/OFF switch to turn on the SST
and make sure the left display reads 0.0.
(6) Turn the control valve on the tester to the
FILL position.
(7) Verify the left display reading is within 13.9 to
14.0 inches of water.
•
If not, adjust the pressure using the
regulator knob located on the right side of the tester.
(8) Turn the control valve to TEST position and press the START switch.
(9) After the 2-minute countdown (left display) is completed, the right display shows the total pressure loss for
that period. A 0.5 inch of water loss is acceptable on the self-test.
•
If the loss is more than 0.5 inch of water, perform one or more self-test. If the failed test repeats, check
for leak using the ultrasonic leak detector (part of SST).
2. Press the RESET switch to set the left display reading to 0.0.
3. Connect the fuel cap receiver assembly (part of SST) to the manifold assembly and fuel-filler cap from the
vehicle.
•
If the fuel-filler cap is not a genuine part, replace it.
4. Turn the control valve to the FILL position.
5. Wait (maximum 20 s) until the left display reads
13.9 to 14 inches of water.
•
If the reading is slightly below, adjust it using
the regulator knob.
•
If the reading is far below, the fuel-filler cap
has leak. Replace it.
6. Turn the control valve to the TEST position and
press the START switch.
7. After the 2-minute countdown (left display) is
completed, check the test result (the failed/
passed light on the tester).
•
If the green light turns on, the fuel-filler cap is
OK.
•
If the red light turns on, the fuel-filler cap has leakage. Replace it.
8. Close the gas cylinder valve.
9. Turn the control valve to the FILL position.
10. Press the ON/OFF switch to turn off the tester.
End Of Sie
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