Fuel Injector: Testing and Inspection

1AR-FE FUEL: FUEL INJECTOR: 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 fuel injector assembly.

(b) Check the operation.

CAUTION:
Perform the inspection in a well-ventilated area. Do not perform the inspection near an open flame.

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





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SST : 09268-31012

09268-41500

90467-13001

95336-08070

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





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

SST : 09268-31012

09268-41110

09268-41300

90467-13001

95336-08070

(4) Install a vinyl tube onto the injector.

(5) Put the injector into the graduated cylinder.

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

(6) Operate the fuel pump.

(7) 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.





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SST : 09842-30080

Standard Injection Volume:





Difference between each injector:

18 cc (1.1 cu in.) or less

CAUTION:
Always switch the voltage on and off on the battery side, not the injector side.

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

(c) Check for leaks.

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





Standard Fuel Drop:

1 drop or less per 20 minutes

If fuel drop is not as specified, replace the fuel injector assembly.