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Home >> Isuzu >> 1990 >> Pickup 1 Ton, MSG5E >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - CARBURETED >> Trouble Code Charts >> Code 21 - Idle (Vacuum) Switch Or Map Sensor

Code 21 - Idle (Vacuum) Switch Or Map Sensor

Fig 1: Flow Chart - Code 21, Idle (Vacuum) Switch Or Map Sensor

G122133

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