Fuel System Components
INSPECTION1. INSPECT FUEL INJECTOR ASSEMBLY
a. Inspect injector resistance
1. Using an ohmmeter, measure the resistance between the terminals.
Resistance: 13.4 to 14.2 Ohms at 20 °C (68 °F)
If the resistance is not as specified, replace the injector.
b. Inspect injector operation
CAUTION:
- This test involves high-pressure fuel and electricity.
- Take every precaution regarding safe handling of both the fuel and the electricity.
- Perform this test in a safe area, and avoid any sparks or flame.
- Do not smoke.
1. Pull out the connector from a new fuel tube.
HINT: Part No. 23801 - 20180
2. Connect SST and the fuel tube connector to the fuel pipe.
SST 09268-41047 (95336-08070)
CAUTION: After taking the precaution, connect the fuel tube connector (quick type).
3. Install the grommet and O-ring to the injector.
4. Connect SST (union and hose) to the injector, and hold the injector and the union with SST (clamp)
SST 09268-41047 (09268-41110, 09268-41300, 95336-08070)
5. Put the injector into a graduated cylinder.
HINT: Install a suitable vinyl tube onto the injector to contain the gasoline spray.
6. Operate the fuel pump.
7. Connect SST (wire) to the injector and the battery for 15 seconds, and measure the injection volume with a graduated cylinder. Test each injector 2 or 3 times.
SST 09842-30070
NOTE: Always do the switching at the battery side.
If the injection volume is not as specified,replace the injector.
c. Inspect leakage
1. In the condition above, disconnect the test probes of SST (wire) from the battery and check the fuel leakage from the injector.
Fuel drop: 1 drop or less in 12 minutes
2. INSPECT FUEL PUMP
a. Inspect fuel pump resistance.
1. Using an ohmmeter, measure the resistance between the terminals.
Resistance: 0.2 to 3.0 Ohms at 20 °C (68 °F)
b. Inspect fuel pump operation
1. Apply battery voltage to both the terminals. Check that the pump operates.
NOTE:
- These tests must be done quickly (within 10 seconds) to prevent the coil from burning out.
- Keep fuel pump as far away from the battery as possible.
- Always do the switching at the battery side.