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Home >> BMW >> 1983 >> 528e Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - BOSCH AFC >> Description >> Throttle Switch
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Throttle Switch

A contact-type throttle switch is installed on the throttle chamber of all models. It converts throttle position into electrical signals to inform ECU of throttle position. See Fig 1 .

The potentiometer within the air flow meter prevents loss of engine power during sudden acceleration/deceleration by signaling the ECU of necessary fuel enrichment requirements.

Fig 1: Contact Type Throttle Switch
G34488