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Home >> Mitsubishi >> 1993 >> Diamante LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Air Induction Systems >> Non-Turbocharged >> Variable Induction Control (Stealth & 3000GT)

Variable Induction Control (Stealth & 3000GT)

  1. Disconnect Variable Induction Control (VIC) valve position sensor connector. Connect test harness (MB991348 ) between connector and control valve. Measure voltage between terminals No. 2 (Red/White wire) and No. 3 (Black wire). Measure voltage between terminals No. 3 and 4 (Black/Blue wire). Voltage should be 0-1 or 4.5-5.5 volts.
  2. Disconnect VIC servo connector. Connect DVOM between both servo connector terminals to check servo coil resistance. Resistance should be 5-35 ohms. Replace servo if resistance is not as specified.
  3. Apply 6 volts between both servo connector terminals. Ensure variable induction control servo shaft turns smoothly. Reverse voltage to servo connector terminals. Servo shaft should turn smoothly in opposite direction. If servo shaft does not function properly, replace air intake plenum assembly.
  4. Check for continuity in circuit between control motor connector and ECM. Disconnect VIC motor connector and ECM connector. Connect DVOM to Green/Black wire of VIC connector and vehicle ground. Ground terminal No. 109 (Green/Black wire) of ECM. Check circuit for continuity. If continuity does not exist, repair as needed.
  5. Connect DVOM to Green/White wire of VIC connector and vehicle ground. Ground terminal No. 110 (Green/White wire) of ECM. Check circuit for continuity. If continuity does not exist, repair as needed.