Fuel Injector: Testing and Inspection

1NZ-FE FUEL: FUEL INJECTOR (for Hatchback): INSPECTION

1. INSPECT FUEL INJECTOR ASSEMBLY

(a) Check the resistance.





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(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





If the result is not as specified, replace the injector assembly.

(b) Check the operation.

CAUTION:
Perform the inspection in a well-ventilated area.

Do not perform the inspection near any open flames.

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





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SST : 09268-31013

90467-13001

95336-08070

09268-41500

(2) Install the new O-ring onto the fuel injector.





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SST : 09268-31013

95336-08070

09268-41300

09268-41110

(3) Connect SST (adapter and hose) to the injector, and hold the injector and union with SST (clamp).

(4) Put the injector into a graduated cylinder.

CAUTION:
Install a suitable vinyl tube onto the injector assembly to prevent gasoline splashes.

(5) Operate the fuel pump Data List / Active Test (from 07/2011).

(6) Connect SST (wire) to the injector assembly 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





Injection Volume:





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Difference between each injector:

11 cm3 (0.7 cu in.) or less

CAUTION:
Always do the switching at the battery side.

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

(c) Check for leaks.





(1) In the condition above, disconnect the test probes of SST (wire) from the battery and check if the fuel leaks from the injector.

Fuel Drop:

1 drop or less every 12 minutes