Fuel Injector: Testing and Inspection
FUEL INJECTOR ASSYa. Inspect injector resistance
1. Using an ohmmeter, measure the resistance between the terminals.
Resistance: 13.4 - 14.2 Ohms at 20 °C (68 °F)
If the resistance is not as specified, replace the injector.
b. Inspect injector inspection
CAUTION: Keep injector clear of sparks during the test.
1. Purchase the new No.1 fuel pipe and take out the fuel tube connector from its pipe.
HINT: Part No.23801-20150
2. Connect SST and fuel tube connector to the fuel pipe.
SST 09268-41047 (95336-08070)
CAUTION: Perform connecting operations of the fuel tube connector (quick type) after observing the precautions.
3. Install the grommet and O-ring to the injector.
4. Connect SST (union and hose) to the injector, and hold the injector and 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 prevent gasoline from splashing out.
6. Operate the fuel pump.
Injection Volume:
7. Connect SST (wire) to the injector and battery for 15 seconds, and measure the injection volume with a graduated cylinder. Test each injector 2 or 3 time.
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 per 12 minutes