Fuel Injector: Testing and Inspection

2AR-FE FUEL: FUEL INJECTOR: INSPECTION

1. INSPECT FUEL INJECTOR ASSEMBLY

(a) 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) Inspect the injector injection.

CAUTION:
Keep the injector away from sparks during the test.

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





SST : 09268-31014

09268-41500

09268-41700

95336-08070

Text in Illustration





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





SST : 09268-31014

09268-41110

09268-41300

09268-41700

95336-08070

Text in Illustration





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

(4) Tie the clamp and adapter together with a tie band as shown in the illustration.





SST : 09268-31014

09268-41110

09268-41300

09268-41800

Text in Illustration





(5) Install a vinyl tube onto the injector.

CAUTION:
Install a suitable vinyl tube onto the injector to contain any gasoline spray.

(6) Put the injector into the graduated cylinder.

(7) Operate the fuel pump.

(8) 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.





Text in Illustration





SST : 09842-30080

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

Standard Injection Volume:





Difference between each injector:

18 cc (1.1 cu.in.) or less

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

(c) Check for fuel drop.

(1) In the condition above, disconnect the tester probes of SST (wire) from the battery and check for fuel drop 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.