Fuel Injector: Testing and Inspection

2ZR-FE FUEL: FUEL INJECTOR: INSPECTION

1. INSPECT FUEL INJECTOR ASSEMBLY

(a) Check the resistance.





(1) Using an ohmmeter, 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 a naked flame.

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





SST : 09268-31013

09268-41500

90467-13001

95336-08070

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

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





SST : 09268-31013

09268-41110

09268-41300

90467-13001

95336-08070

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

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

(5) Operate the fuel pump.

(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:





Difference between each injector:

13 cc (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 injector assembly.

(c) Check for leaks.





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

Fuel drop:

1 drop or less every 12 minutes