Mazda CX-5 Service & Repair Manual: Fuel Pump Unit
Purpose, Function
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Supplies fuel in the fuel tank to the high pressure fuel pump.
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Based on the control signal from the PCM, the fuel pump operates by the operation of the fuel pump relay and the fuel pump control module.
Construction
2WD
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The fuel pump unit is installed to the fuel tank.
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The fuel pump unit consists of a fuel pump, fuel filter (low-pressure) fuel filter (high-pressure), pressure regulator, and lower cover.
AWD
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The fuel pump unit is installed to the fuel tank.
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The fuel pump unit consists of a fuel pump, fuel filter (low-pressure) fuel filter (high-pressure), pressure regulator, lower cover, and jet pump.
Operation
2WD
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Based on the control signal from the PCM, the fuel pump suctions fuel in the lower cover and pumps it to the high pressure fuel pump. After fuel is sufficiently filtered through the fuel filter (low-pressure) and fuel filter (high-pressure), fuel pressure is adjusted to approx. 430 kPa {4.38 kgf/cm2, 62.4 psi}
by the pressure regulator.
AWD
-
Based on the control signal from the PCM, the fuel pump suctions fuel in the lower cover and pumps it to the high pressure fuel pump. After fuel is sufficiently filtered through the fuel filter (low-pressure) and fuel filter (high-pressure), fuel pressure is adjusted to approx. 430 kPa {4.38 kgf/cm2, 62.4 psi}
by the pressure regulator.
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Positions the venturi pipe (jet pump) in the return path from the pressure regulator and sends fuel from the fuel tank sub side to the main side using vacuum generated in that area.
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For fuel pump control details, refer to CONTROL SYSTEM..
Fail-safe
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Function not equipped.
Fuel Pump Unit Removal/Installation
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 ...
Fuel Shut Off Valve Inspection
U.S.A. And CANADA
NOTE:
The fuel shut-off valve cannot be removed and inspected as it is built into
the fuel tank.
1. Perform the fuel tank inspection..
If there is any malfu ...
Other materials:
Engine Oil Solenoid Valve Inspection
Engine Oil Solenoid Valve Operation Inspection
1. Remove the engine oil solenoid valve..
2. Verify that the battery is fully charged.
3. Connect the battery to the engine oil solenoid valve connector (2 terminals)
as shown in the figure.
4. Verify that there is an operation sound from t ...
Wiper/Washer System
Outline
The following wiper/washer system has been adopted.
Windshield wiper system
Rear wiper system
Auto wiper system (with auto wiper system)
Washer fluid-level sensor (with washer fluid-level sensor)
Specification
Windshiel ...
Cooling Fan Component
Purpose, Function
The cooling fan rotates according to vehicle conditions and enhances the
cooling efficiency of the radiator.
Structural View
Operation
For the operation, refer to CONTROL SYSTEM..
Fail-safe
Function not equipped.
...
