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Throttle Position Potentiometer

NOTE: Throttle position potentiometer is mounted with break-off screws. Screws must be drilled and removed, then replaced before adjustment is possible.
  1. Connect EFI tester to vehicle. Place toggle switch to EFI position and rotary switch to throttle position, then turn ignition on. Move diagnostic aid switch to manual position, then move AIS control switch down and hold until AIS motor stops.
  2. Depress AIS by-pass button and read TPP voltage. Adjust switch position to obtain 4.0-5.0 volts. Tighten break-off screws until heads snap off.
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