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Home >> Porsche >> 1983 >> 944 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - BOSCH AFC >> Testing >> THERMO Time Switch
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THERMO Time Switch

  1. With engine cold and air temperature below 68°F (20°C), disconnect electrical connector from cold start injector and connect test lamp to connector terminals. Disconnect electrical connector from No. 1 ignition coil terminal.
  2. Operate starter. Test lamp should glow brightly. After 11 seconds (maximum), test lamp should dim or go out. If not, replace thermo time switch.
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