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Home >> Chevrolet >> 1985 >> Sprint Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Feedback Carburetor System >> Testing >> Mixture Control Solenoid Valve

Mixture Control Solenoid Valve

  1. Remove duty check connector cap and short the terminals with a lead wire. See Fig 1 . Turn ignition switch "ON" and "OFF" repeatedly without starting engine.
  2. Using finger, touch carburetor body near Mixture Control Solenoid (MCS) valve and make sure carburetor makes small vibrations according to ignition switch operation.
Fig 1: Shorting Duty Check Connector Terminals
G42234
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