Fuel Pressure: Testing and Inspection
INSPECTIONWARNING: Before removing the fuel pressure gauge, release the fuel pressure.
NOTE: When the fuel pressure is out of specification, check or replace the pressure regulator and pressure regulator vacuum hose.
1. Remove the collector cover.
2. Release the fuel pressure.
3. Open the fuel filler flap lid, and remove the fuel filler cap.
4. Disconnect the fuel delivery hose and connect fuel pressure gauge.
5. Install the fuse of fuel pump to main fuse box.
6. Start the engine.
7. Measure the fuel pressure while disconnecting pressure regulator vacuum hose from intake manifold.
8. After connecting the pressure regulator vacuum hose, measure the fuel pressure.
NOTE: The fuel pressure gauge registers 10 to 20 kPa (0.1 to 0.2 kgf/cm2, 1 to 3 psi) higher than standard values during high-altitude operations.