Fuel Injector: Testing and Inspection

2GR-FE FUEL: FUEL INJECTOR: INSPECTION

INSPECTION

1. INSPECT FUEL INJECTOR ASSEMBLY
(a) Inspect injector resistance.
(1) Measure the resistance between the terminals.
Standard resistance:
11.6 to 12.4 Ohms at 20°C (68°F)
If the result is not as specified, replace the injector.
(b) Inspect the injection volume.
NOTICE:
- 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 flames. Do not smoke.





(1) Connect SST (fuel tube connector) to SST (hose), then connect them to the fuel tube (vehicle side).
SST: 09268-31012
09268-41500
90467-13001
95336-08070





(2) Install the O-ring to the fuel injector.
(3) Connect SST (adaptor and hose) to the injector, and hold the injector and union with SST (clamp).
SST: 09268-31012
09268-41130
90467-13001
95336-08070
SST: 09268-41400
(4) Put the injector into the graduated cylinder.
CAUTION: Install a suitable vinyl tube onto the injector to contain gasoline spray.
(5) Operate the fuel pump.





(6) Connect SST (wire) to the injector and the battery for 15 seconds, and measure the injection volume with the graduated cylinder. Test each injector 2 or 3 times.
SST: 09842-30080
Standard volume:
84 to 100 cm3 (5.1 to 6.0 cu in.) in 15 seconds
Difference between each injector:
16 cm3 (0.96 cu in.) or less
If the injection volume is not as specified, replace the injector.






(c) Inspect the fuel leakage.
(1) In the condition above, disconnect the tester probes of SST (wire) from the battery and check for the fuel leakage from the injector.
Fuel drop:
1 drop or less in 16 minutes