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Home >> Isuzu >> 1993 >> Rodeo LS, 4WD, Standard >> Repair and Diagnosis >> Electrical >> Gauges >> Instrument Panel >> System Testing >> Fuel Gauge Sending Unit

Fuel Gauge Sending Unit

  1. Install fuel gauge sending unit on test bench. On Rodeo 2.6L, connect ohmmeter to fuel gauge sending unit at terminals No. 1 and 3. On Rodeo 3.2L, connect ohmmeter to fuel gauge sending unit at terminals No. 1 and 2. SeeFig 1 or Fig 2 .
    Fig 1: Measuring Fuel Gauge Sending Unit Resistance (Rodeo 2.6L)
    G93G01615Courtesy of ISUZU MOTOR CO.
    Fig 2: Measuring Fuel Gauge Sending Unit Resistance (Rodeo 3.2L)
    G93I01616Courtesy of ISUZU MOTOR CO.
  2. As float is moved, resistance reading should change smoothly. See FUEL GAUGE SENDING UNIT RESISTANCE  . On Rodeo 3.2L, connect ohmmeter to fuel gauge sending unit at terminals No. 1 and 4. Resistance should be 13.6 ohms. If resistance readings are not as specified, replace sending unit.
FUEL GAUGE SENDING UNIT RESISTANCE

Sending Unit Position Ohms
Rodeo 2.6L
Empty 113.4-126.5
1/2 40.5-49.5
Full 14.9-19.1
Rodeo 3.2L
Empty 115-125
1/2 43.5-46.5
Full 16.2-17.8