LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Porsche >> 1986 >> 944 Turbo >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - BOSCH AFC >> Testing >> Throttle Switch >> Checking Activation of Control Unit
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Checking Activation of Control Unit

  1. With engine at idle speed, pull off plug on idle switch. Engine speed must increase considerably. Engine speed should increase 500 RPM. Ignition timing advance should be 12° BTDC.
  2. If nothing happens, check wire between idle switch plug and control unit plug for breaks according to wiring diagram. If necessary, replace control unit.