Mazda 6 2002, Workshop Manual

Page: 154 / 1248

EMISSION SYSTEM
F–39
F
PURGE SOLENOID VALVE INSPECTION
A6E391618740W02
Airflow Inspection
Note
•
Perform the following test only when directed.
1. Disconnect the negative battery cable.
2. Remove the purge solenoid valve. (See
F–38 PURGE SOLENOID VALVE REMOVAL/INSTALLATION .)
3. Inspect airflow between the ports under the following conditions.
•
If not as specified, replace the purge solenoid valve.
•
If as specified, carry out the “Circuit Open/Short Inspection”.
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See F–43 PCM REMOVAL/INSTALLATION .)
2. Inspect the following wiring harness for open or
short (continuity check).
Open circuit
•
If there is no continuity, the circuit is open.
Repair or replace the harness.
— Purge solenoid valve terminal A
(harness-side) and PCM terminal 4U
— Purge solenoid valve terminal B
(harness-side) and main relay terminal C
(harness-side)
Short circuit
•
If there is continuity, the circuit is shorted.
Repair or replace the harness.
— Purge solenoid valve terminal A
(harness-side) and body GND
— Purge solenoid valve terminal B (harness-side) and power supply
End Of Sie
EGR VALVE REMOVAL/INSTALLATION
A6E391620300W01
1. Disconnect the negative battery cable.
2. Disconnect the EGR valve connector.
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
Water Hose Removal Note
•
Drain the engine coolant. (See E–4 ENGINE
COOLANT REPLACEMENT .)
EGR Valve Removal Note
1. Remove the air hose. (See F–10 INTAKE-AIR
SYSTEM REMOVAL/INSTALLATION )
2. Remove the upper radiator hose. (See E–6 RADIATOR REMOVAL/INSTALLATION .)
End Of Sie
A6E3916W004
A6E3916W005
A6E3916W006
1 Water hose
(See
F–39 Water Hose Removal Note )
2 EGR valve
(See
F–39 EGR Valve Removal Note )
A6E3916W008