Mazda CX-5 Service & Repair Manual: Fuel Pump Unit
Purpose, Function
-
Supplies fuel in the fuel tank to the high pressure fuel pump.
-
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
-
The fuel pump unit is installed to the fuel tank.
-
The fuel pump unit consists of a fuel pump, fuel filter (low-pressure) fuel filter (high-pressure), pressure regulator, and lower cover.
AWD
-
The fuel pump unit is installed to the fuel tank.
-
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
-
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.
-
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.
-
For fuel pump control details, refer to CONTROL SYSTEM..
Fail-safe
-
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:
Fog Lights
Use this switch to turn on the fog lights.
The fog lights will improve visibility at night and during foggy conditions.
To turn the fog lights on, rotate the fog light switch to the
position.
The headlight switch must be in the
position before turning on the fog lights.
To turn the fog lig ...
Liftgate Latch And Lock Actuator Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Liftgate upper trim.
b. Liftgate side trim.
c. Liftgate lower trim.
3. Disconnect the connector.
4. Remove the bolts.
5. Remove the liftgate latch and lock actuator from the liftgate.
6. Install in t ...
Break-In Period
No special break-in is necessary, but a few precautions in the first 1,000 km
(600 miles) may add to the performance, economy, and life of your Mazda.
• Do not race the engine.
• Do not maintain one constant speed,
either slow or fast, for a long period of time.
• Do not drive constantl ...
