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Home >> Toyota >> 1989 >> Van Base, Van Window, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Basic Testing - 4-CYL EFI >> Fuel Pressure >> Fuel Pump Quick Test

Fuel Pump Quick Test

  1. Turn ignition on, with engine off. On all except Van, place jumper wire across "+B" and "FP" terminals of engine check connector in engine compartment. See Fig 1. See ENGINE CHECK CONNECTOR LOCATION table. On Van, place jumper wire across 2-wire fuel pump check connector (White/Black and Green wires). See Fig 1. See VAN FUEL PUMP CHECK CONNECTOR LOCATION table.
    ENGINE CHECK CONNECTOR LOCATION

    Model (1) Location
    Camry, Celica, Corolla Left shock tower
    MR2 Left rear panel of engine compartment
    Pickup/4Runner Right fenderwell
    (1) Label on inside of engine check connector cover has check connector pin identification. All "FP" and "B" pins will be in same location.
    VAN FUEL PUMP CHECK CONNECTOR LOCATION

    Model Location
    Van (1) 2-wire connector under driver's seat
    (1) White/Black and Green wires.
    Fig 1: Engine Check Connector & Fuel Pump Check Connector Location
    G118545Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. On all models, listen for fuel pump running sound. Feel for pressure in fuel line between filter and fuel rail. Turn ignition off. Remove jumper wire. If fuel pump sound was present and fuel hose showed pressure, go to FUEL SYSTEM PRESSURE TEST.
  3. If no pressure or fuel pump sound was present on all except Van, connect a jumper wire from battery source to "FP" terminal of engine check connector.
    NOTE: On Van, go to FUEL PUMP CONTROL CIRCUIT.
  4. On all except Van, if fuel pump does not run or no fuel pressure is felt in line, check for defective fuel pump. Check for open circuit between engine check connector and fuel pump or poor fuel pump ground. See WIRING DIAGRAMS in this section.
    NOTE: All models use in-tank fuel pump. Fuel pump contains internal relief valve and check valve.
  5. If fuel pump ran after battery source was connected to "FP" terminal in step 3), check EFI main relay and related wiring. Also check "EFI" and "IGN" fuses. See FUEL PUMP CONTROL CIRCUIT in this article. For more information on wiring, see WIRING DIAGRAMS in this section.