Mazda CX-5 Service & Repair Manual: Fuel Pump Relay
Purpose, Function
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Controls the fuel pump on/off according to control signals from the PCM.
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The fuel pump is operated only at engine start or when the engine is running to improve safety.
Construction
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The fuel pump relay is installed in the relay and fuse block.
Operation
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The contact point is on when the battery voltage is supplied to the coil based on the signal from the PCM, and the battery voltage is supplied to the fuel pump control module.
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For the fuel pump control, refer to CONTROL SYSTEM..
Fail-safe
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Function not equipped.
Fuel Pressure Sensor
Purpose/Function
Detects the fuel pressure in the fuel distributor as basic information for
mainly determining the fuel injection amount.
Detects the fuel pressure in the fuel distri ...
Fuel Tank Pressure Sensor Inspection
Voltage Inspection
NOTE:
The fuel tank pressure sensor cannot be removed as a single unit. When replacing
the fuel tank pressure sensor, replace it together with the charcoal canister
a ...
Other materials:
Lubrication System
Outline
Pressure loss is reduced by optimizing the oil passage.
With the adoption of the chain drive type oil pump, oil pump drive force
has been reduced.
With the adoption of the oil shower pipe, sliding resistance has been reduced.
With the adoption of the engine ...
Purge Solenoid Valve Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the plug hole plate..
3. Remove the air cleaner and air hose as a single unit..
4. Disconnect the high pressure fuel pump connector.
5. Disconnect the harness clip as shown in the figure.
6. Remove in the order indicated in the table ...
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 ...
