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Home >> Volvo >> 1991 >> 240 SE, AW70L >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Fuel System >> Fuel Pump Circuit

Fuel Pump Circuit

  1. With fuel injection system relay removed, check for battery voltage at terminal No. 30. See Figure . If battery voltage is not present, repair wiring between relay connector and battery.
  2. Connect jumper wire between terminals No. 30 and 87/2 of fuel injection system relay connector. Fuel pump should run. If not, check wiring between pump and relay. Also check wiring between terminals No. 87/1 and 85 for continuity. Repair as necessary.
    NOTE: ECU terminal identifications are marked on unit or connector.
    CAUTION: Ignition must be off when connecting or disconnecting ECU connector.
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