Mazda CX-5 Service & Repair Manual: High Pressure Fuel Pump
Purpose, Function
-
Applies pressure to fuel sent from the fuel pump equipped on the fuel tank, and then pumps it to the fuel delivery pipe.
-
Fuel is sectioned and pumped by the up and down movement of the piston caused by the rotation of the cam installed to the rear end of the exhaust camshaft.
Construction
-
The high pressure fuel pump is installed to the exhaust camshaft with the vacuum pump.
-
The high pressure fuel pump consists of a spill valve control solenoid valve, spill valve, piston, and spring.
Operation
-
Based on the control signal from the PCM, the spill valve solenoid valve opens and closes in the high pressure fuel pump.
-
For the high pressure fuel pump control details, refer to CONTROL SYSTEM..
Fail-safe
|
DTC |
Fail-safe |
|
P0089:00 |
|
|
P0091:00 |
|
|
P0092:00 |
|
High Pressure Fuel Pump 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 ...
Low Fuel Warning Light
Purpose
The low fuel warning light warns the driver that the remaining fuel level
is low.
Function
The instrument cluster calculates the fuel quantity based on the following
...
Other materials:
Accelerator Pedal Position (App) Sensor
Purpose/Function
Detects the accelerator pedal depression amount as basic information for
mainly determining the throttle valve opening.
Detects the accelerator pedal depression amount and inputs it to the PCM
as an accelerator pedal opening angle signal.
Construction
...
Differential Oil Temperature Sensor Inspection
WARNING:
Hot differential oil may cause severe burns. Do not perform maintenance while
differential oil is hot.
1. Disconnect the negative battery cable.
2. Disconnect the differential oil temperature sensor connector and remove the
differential oil temperature sensor.
3. Wrap ...
Intake Air Temperature (Iat) Sensor
IAT Sensor No.1
Purpose/Function
Detects the IAT before it passes through the throttle body as basic information
for mainly determining the fuel injection amount.
Detects the IAT before it passes through the throttle body and inputs it
to the PCM as an IAT signal.
Constru ...
