1985 Porsche 928 AutomaticFACTORY OEM SERVICE PROCEDURE

Adjusting Throttle Switch

With throttle in idle position, loosen throttle switch screws and turn throttle switch until idle switch makes contact. Idle switch must make contact when throttle is opened to less than one degree gap. Full load contact is adjusted automatically with the idle contact switch.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.