isuzu Workshop Repair Guides

Isuzu Workshop Service and Repair Manuals

Relays and Modules - Ignition System > < Knock Sensor|Specifications|Page 1384
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Knock Sensor: Description and Operation

Knock Sensor

Spark knock (detonation) is controlled by the ECM through its control of the electronic ignition system.  The ECM will retard ignition timing when it
receives a signal from the knock sensor.  This allows the engine to use maximum spark advance to improve driveability and fuel economy.  Other inputs
utilized by the ECM to calculate spark timing include:

Crank angle sensor
Throttle valve or position switch
Vehicle speed sensor

Coolant temperature sensor
Air flow sensor

Relays and Modules - Ignition System > < Knock Sensor|Specifications|Page 1384