Fuel Injector: Testing and Inspection

2ZR-FE FUEL: FUEL INJECTOR: INSPECTION

1. INSPECT FUEL INJECTOR ASSEMBLY





(a) Check the resistance.

(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.

(b) Check the operation.

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

Do not perform the inspection near any flames.

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





SST : 09268-41048

90467-13001

95336-08070

09268-41500

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

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





SST : 09268-41048

09268-41110

90467-13001

95336-08070

09268-41310

(4) Set the fuel injector in a graduated cylinder.

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

(5) Operate the fuel pump Fuel System.

(6) Connect SST (wire) to the fuel 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

Injection volume:

60 to 73 cm3 (3.7 to 4.5 cu in.) every 15 seconds

Difference between each injector:

13 cm3 (0.8 cu in.) or less

NOTICE:
Always do the switching at the battery side.

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

(c) Check the leakage.





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

Fuel drop:

1 drop or less every 12 minutes