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Home >> Mitsubishi >> 1987 >> Van LS >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - MITSUBISHI MPI >> Testing >> Idle Switch

Idle Switch

  1. Turn ignition switch to "OFF" position. Disconnect ISC servo connector. Check for continuity between pole 2 and injection mixer body.
  2. If continuity exists when throttle valve is placed in idle position and no continuity exists when throttle valve is open (so that lever leaves idle switch), switch is good.
  3. If continuity exists when throttle valve is in both positions, contacts are bound together. If no continuity exists when throttle valve is in both positions, grounding is defective. Replace ISC servo assembly.
Fig 1: Switch Location & Terminal Identification
G62358Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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