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Home >> Mazda >> 1997 >> MX-6 Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - 2.0L >> Fuel System >> Fuel Control >> Dechoke Control System
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Dechoke Control System

  1. When spark plugs become fouled (i.e. engine is flooded), fuel injection is cut if throttle valve is held wide open during cranking to facilitate in starting engine. This allows spark plugs to dry and purges excess fuel from cylinders.
  2. To check system operation, turn ignition on and verify injector operating sound is present while cranking engine. Turn ignition off. Depress accelerator pedal fully and turn ignition on. Verify injector operating sound is not present while cranking engine.
  3. If operation sound is not present, dechoke control system is functioning properly. If operating sound is present, check ECM/PCM terminal 3B (No. 88 on MX-6 2.0L A/T). See PIN VOLTAGE/PID VALUE CHARTS - 2.0L article. Repair as necessary
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