Alphabetical Index

Fuel System
SINGLE POINT FUEL INJECTION (SPFI) SYSTEM

Electric Fuel Pump


REMOVAL & INSTALLATION
See Figure 1
Fig. 1: Fuel pump assembly mounted under the vehicle-1.8L engine
  1. Release the fuel system pressure. Do not reconnect the fuel pump harness.
  2. Disconnect the negative battery cable.
  3. Raise and support the vehicle safely on jackstands.
  4. Clamp the middle portion of the hose connecting the fuel tank pipe and the pump to prevent fuel from flowing out of the tank when unfastened.
  5. Loosen the hose clamp and disconnect the hose.
  6. Remove the three pump bracket mounting bolts and remove the pump together with the pump damper.

To install:

  1. Install the fuel pump and damper, and tighten the bolts securely.
  2. Install the hose and tighten the clamp screw to 9-13 inch lbs. (1.0-1.5 Nm).
  3. Install the pump bracket in position to the vehicle body and secure it with the bolts.

Take care to position the rubber cushion properly.

  1. Connect the pump harness.
  2. Connect the negative battery cable and test the fuel pump for proper operation.
  3. Check for fuel leaks.


TESTING
  1. Turn the ignition ON and listen for the fuel pump to make a growling sound. Turn the ignition OFF.
  2. Release the fuel system pressure. Disconnect the pump harness and crank the engine for 5 seconds or more. If the engine starts, allow it to run until it stops. Turn the ignition OFF and install the fuel pump connector.
  3. Disconnect the fuel hose at the fuel pump.
  4. Connect a gauge in-line using a T-fitting.
  5. Start the engine and measure the fuel pressure. If the fuel pressure is not 36-50 psi (248-344 kPa), replace the pump.
  6. Release the fuel system pressure and remove the gauge.



END OF SECTION