mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Fuel Injector|Description and Operation|Page 2579 > < Fuel Injector|Description and Operation
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solenoid and connector, and a pintle valve and nozzle. Injectors are held in place by the fuel rail and sealed by an O-ring and insulator.

To calculate fuel injection quantity and timing, the ECU utilizes information from various input sensors, making adjustments needed to maintain good
driveability, fuel economy and low emissions under the full range of operating conditions.

Input information is calculated from these devices:

Crank angle sensor

Water thermosensor
Oxygen sensor

Airflow meter
Intake air thermosensors

Throttle sensor
Pressure sensor
Electrical loads
Neutral and clutch switches
A/C switch
Mileage sensors

EC-AT control unit
Ignition switch ("START" position)

Fuel Injector|Description and Operation|Page 2579 > < Fuel Injector|Description and Operation