FUEL TANK PRESSURE SENSOR INSPECTION [MZI-3.5]
VOLTAGE INSPECTION
1. Remove the evaporative hose component. (see
FUEL TANK REMOVAL/INSTALLATION [MZI-
3.5]
.)
2. Turn the ignition switch to the ON position.
3. Plug one end of the evaporative hose component and verify that the output voltage from the fuel tank
pressure sensor changes when pressure is applied from the other hose end.
z
If it cannot be verified even though the related harnesses have no malfunction, replace the
evaporative hose component.(see
FUEL TANK REMOVAL/INSTALLATION [MZI-3.5]
.)
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If the monitor item status/specification (reference) is not within the specification, even though the
resistance is within the specification, perform the "Circuit Open/Short Inspection".
CIRCUIT OPEN/SHORT INSPECTION
Fig. 39: Identifying Fuel Tank Pressure Sensor & PCM Related Connector Terminals
Courtesy of MAZDA MOTORS CORP.
1. Disconnect the PCM connector. (See
PCM REMOVAL/INSTALLATION [MZI-3.5]
.)
2. Disconnect the fuel tank pressure sensor connector.
3. Inspect the following wiring harnesses for open or short. (Continuity inspection)
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE Control System (MZI-3.5) - CX-9
Microsoft
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