Mazda CX-9 Grand Touring. Manual — part 203
Fig. 26: Identifying PCM Wiring Harness Side Connector
Courtesy of MAZDA MOTORS CORP.
Open circuit
If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
PCV valve heater fitting terminal A and main relay No.1 terminal D
PCV valve heater fitting terminal B and PCM terminal 2AU
Short circuit
If there is continuity, there is a short circuit. Repair or replace the wiring harness.
PCV valve heater fitting terminal A and power supply
PCV valve heater fitting terminal A and body ground
PCV valve heater fitting terminal B and power supply
PCV valve heater fitting terminal B and body ground
POSITIVE CRANKCASE VENTILATION (PCV) VALVE HEATER FITTING
REMOVAL/INSTALLATION [MZI-3.7]
1. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7] .)
2. Remove in the order indicated in the table.
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE Emission System (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:04:04 AM
Page 19
© 2005 Mitchell Repair Information Company, LLC.
Fig. 27: Identifying PCV Valve Hose, PCV Valve Heater Control Connector, PCV Valve, O-Ring &
Torque Specifications
Courtesy of MAZDA MOTORS CORP.
3. Install in the reverse order of removal.
ROLLOVER VALVE REMOVAL/INSTALLATION [MZI-3.7]
ROLLOVER VALVE INSPECTION [MZI-3.7]
1. Perform the fuel tank inspection. (See FUEL TANK INSPECTION [MZI-3.7] .)
FUEL SHUT-OFF VALVE REMOVAL/INSTALLATION [MZI-3.7]
NOTE:
The rollover valve cannot be removed as it is built into the fuel tank.
NOTE:
The rollover valve cannot be disassembled and inspected as it is built into
the fuel tank.
NOTE:
The fuel shut-off valve cannot be removed as it is built into the fuel tank.
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE Emission System (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:04:04 AM
Page 20
© 2005 Mitchell Repair Information Company, LLC.
FUEL SHUT-OFF VALVE INSPECTION [MZI-3.7]
1. Perform the fuel tank inspection. (See FUEL TANK INSPECTION [MZI-3.7] .)
QUICK RELEASE CONNECTOR (EMISSION SYSTEM)
REMOVAL/INSTALLATION [MZI-3.7]
QUICK RELEASE CONNECTOR TYPE
TYPE A REMOVAL
1. Release the retainer shown in the figure.
2. Disconnect the quick release connector.
NOTE:
The fuel shut-off valve cannot be removed and inspected as it is built into
the fuel tank.
WARNING:
Fuel is very flammable liquid. If fuel spills or leaks from the
pressurized fuel system, it will cause serious injury or death and
facility breakage. Fuel can also irritate skin and eyes. To prevent
this, always complete the "Fuel Line Safety Procedure", while
referring to the "BEFORE SERVICE PRECAUTION".
CAUTION:
There are five types of quick release connectors. Verify the type and
location, and install/remove properly.
Fig. 28: Identifying Engine Compartment Side And Ventilation Hose
Courtesy of MAZDA MOTORS CORP.
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE Emission System (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:04:04 AM
Page 21
© 2005 Mitchell Repair Information Company, LLC.
3. Cover the disconnected quick release connector and fuel pipe with vinyl sheeting or a similar material to
prevent it from scratches or dirt.
Fig. 29: Identifying Quick Release Connector And Retainer
Courtesy of MAZDA MOTORS CORP.
TYPE B REMOVAL NOTE
1. Push the retainer.
2. Pull the connector side and disconnect the quick release connector.
3. Cover the disconnected quick release connector and fuel pipe with vinyl sheeting or a similar material to
prevent it from scratches or dirt.
Fig. 30: Identifying Quick Release Connector And Retainer
Courtesy of MAZDA MOTORS CORP.
NOTE:
If the quick release connector is removed, replace the retainer with a new
one.
NOTE:
The quick release connector can be removed by pushing the center
of the retainer tabs.
The retainer is attached to the pipe even after the connector is
disconnected.
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE Emission System (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:04:04 AM
Page 22
© 2005 Mitchell Repair Information Company, LLC.
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