Mazda CX-5 Service & Repair Manual: Fuel Injector Relay
Purpose, Function
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Supplies power to the PCM for the fuel injector and spill valve control solenoid valve operation.
Construction
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The fuel injector relay is installed in the relay and fuse block.
Operation
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When the ignition is switched ON, the battery voltage is supplied to the coil and the contact point is on, thus the battery voltage is supplied to the PCM.
Fail-safe
-
Function not equipped.
Fuel Injector Inspection
Resistance Inspection
1. Disconnect the negative battery cable..
2. Remove the plug hole plate..
3. Disconnect the fuel injector connector.
4. Inspect the resistance between fuel injector termi ...
Fuel Injector 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 ...
Other materials:
Cooling System Service Warnings
WARNING:
Never remove the cooling system cap or loosen the radiator drain plug while
the engine is running, or when the engine and radiator are hot. Scalding engine
coolant and steam may shoot out and cause serious injury. It may also damage
the engine and cooling system.
Tu ...
Heated Oxygen Sensor (HO2 S) Heater Control
Outline
Based on the control of the HO2S heater, a stabilized oxygen concentration
is detected even at low exhaust temperatures, and feedback control of fuel injection
even at cold engine start is made possible for improved cold temperature exhaust
emission performance.
Both ...
Crankshaft Pulley
Purpose, Function
The crankshaft pulley transmits the drive force to the auxiliary parts via
the drive belt.
The crankshaft pulley suppresses torsional vibration of the crankshaft.
Construction
The crankshaft pulley is installed to the front of the crankshaft.
...
