Fuel Pressure: Testing and Inspection
Fuel Pressure TestSpecial Tools Required
- Fuel pressure gauge 07406-004000A
- Fuel pressure attachment set 07ZAJ-S7A300
1. Relieve the fuel pressure.
Fuel Pressure Gauge Connection:
2. Remove the fuel pulsation damper from its fitting (K20A3 engine), and attach the fuel pressure gauge attachment and the fuel pressure gauge.
3. Start the engine and let it idle.
- If the engine starts, go to step 5.
- If the engine does not start, go to step 4.
4. Check to see if the fuel pump is running: remove the fuel fill Gap and listen to fuel fill port while an assistant turns the ignition switch ON (II). You should hear the pump, run for about 2 seconds when the ignition is turned on.
- If the pump runs, step 5.
- If the pump does not run, test it.
5. Read the pressure gauge. The pressure should be 320 - 370 kpa (3.3 - 3.8 kgf/sq.cm, 47 - 54 psi).
- If the pressure is OK, the test is complete.
- If the pressure is out of specification, replace the fuel pressure regulator, and fuel filter, and recheck fuel pressure.
6. Remove the pressure gauge, and reinstall the fuel pulsation damper with a new washer. Tighten the fuel pulsation damper to 22 N.m (2.2 kgf.m, 16 lbf.ft).
NOTE:
- Disassemble and clean the fuel pressure gauge attachment thoroughly after use.
- If the drain hole (A) of the fuel pulsation damper cover does not face bottom (K20A2 engine), reinstall it as shown.