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Home >> Porsche >> 1987 >> 928 Standard >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - BOSCH LH >> Description >> Throttle Switch (Fuel System)
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Throttle Switch (Fuel System)

A throttle switch located on the throttle housing has an idle speed contact and full throttle contact. The idle speed contact is closed and the full throttle contact open when the throttle is against the idle stop.

The idle speed contact is opened immediately when the throttle opens. Both switch contacts have double performance for the ignition and fuel injection systems and are also connected electrically with the EZF ignition control unit and LH fuel control unit.