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Home >> Porsche >> 1986 >> 944 Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DME System >> Diagnosis & Testing >> Throttle Switch >> Checking Idle Switch Function
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Checking Idle Switch Function

Operate accelerator linkage carefully approximately .039" (1 mm). The microswitch should open without the throttle opening and there must be a definite increase in idle speed. Speed should increase 500 RPM. Ignition timing advance should be 12° BTDC. If nothing happens, check microswitch and its adjustment.