Fig. 10: Identifying DLC-2 Connector
Courtesy of MAZDA MOTORS CORP.
2. Using a jumper wire, short fuel pump relay terminals C and D in the main fuse block.
3. Connect the negative battery cable and operate the fuel pump.
8. Measure the fuel line pressure, (during key on engine off (KOEO))
z
If not as specified, inspect the following:
Zero or low
FP circuit
FP
Fuel line (clogging)
Fuel leakage inside pressure regulator
High
Pressure regulator
Fig. 11: Identifying Main Fuse Block Connector Terminals
Courtesy of MAZDA MOTORS CORP.
Fuel line pressure
331-485 kPa {3.38-4.94 kgf/cm
2
, 48.1-70.3 psi}
9. Stop the fuel pump using the following procedure.
Using M-MDS
1. Stop the fuel pump using the "FP" simulation function.
Using M-MDS
1. Turn the ignition switch off.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE Fuel System (MZI-3.5) - CX-9
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