Fuel Injector: Testing and Inspection

2GR-FE FUEL: FUEL INJECTOR: INSPECTION

1. INSPECT FUEL INJECTOR ASSEMBLY





(a) Inspect the injector resistance.

(1) Using an ohmmeter, measure the resistance between the terminals.

Standard resistance:





If the resistance is not as specified, replace the injector.

(b) Inspect the injection volume.

CAUTION:
This test involves high-pressure fuel and electricity. Take every precaution regarding the safe handling of both fuel and electricity. Perform this test in a safe area, and avoid any sparks or flames. Do not smoke.

(1) Install the fuel tube connector to SST (hose), then connect the tube connector to the fuel pipe (vehicle side).





SST : 09268-31012

09268-41500

90467-13001

95336-08070

NOTICE:
Do not scratch or allow any foreign matter on the connection between the fuel tube connector and the pipe, as they are sealed with the O-ring on the SST connector.

(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

09268-41110

09268-41400

90467-13001

95336-08070

(4) Put the injector into the graduated cylinder.

CAUTION:
Install a suitable vinyl tube onto the injector that will contain gasoline spray.

(5) Operate the fuel pump Fuel System.

(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

Volume:

84 to 100 cm3 (5.1 to 6.0 cu.in.) in 15 seconds

Difference between each injector:

16 cm3 (0.98 cu.in.) or less

If the injection volume is not as specified, replace the injector.

(c) Check for leaks.





(1) Disconnect the tester probes of SST (wire) from the battery and check for fuel leaks from the injector.

Fuel drop:

1 drop or less in 16 minutes