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Home >> Isuzu >> 1983 >> Impulse Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - I-TEC EFI >> Adjustments >> Throttle Valve Switch

Throttle Valve Switch

  1. Throttle valve must be completely closed. Loosen throttle valve switch mounting screws slightly. Unplug connector harness at throttle valve.
  2. While checking continuity between center (P) terminal and top (I) terminal, turn the switch in a clockwise direction until continuity is obtained.
  3. When tester shows continuity, turn switch 1° in clockwise direction and lock in place. One degree of travel is equivalent to about .4 mm of stroke of the throttle valve stopper bolt.
Fig 1: Isuzu I-TEC Fuel Injection Wiring Diagram
G34546