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Home >> Isuzu >> 1993 >> Pickup 2D Pickup, 2.3 L >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - CARBURETED >> Code Charts >> Code 21 - Idle (Vacuum) Switch & Map Sensor

Code 21 - Idle (Vacuum) Switch & Map Sensor

NOTE: If Codes 21 and 23 exist, start with Code 23.
Fig 1: Chart 21 - Schematic
G91J17482Courtesy of ISUZU MOTOR CO.
Fig 2: Chart 21 - Diagnostic Flowchart
G91A17483Courtesy of ISUZU MOTOR CO.
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