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Home >> Isuzu >> 1992 >> Pickup LS, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.3L 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: Code No. 21 Schematic, Idle (Vacuum) Switch & MAP Sensor
G91J17482Courtesy of ISUZU MOTOR CO.
Fig 2: Code No. 21 Flow Chart, Idle (Vacuum) Switch & MAP Sensor
G91A17483Courtesy of ISUZU MOTOR CO.
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