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) with SST (hose band), and then connect them to the fuel pipe (vehicle side).
Text in Illustration
SST : 09268-31014
09268-41500
09268-41700
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).
Text in Illustration
SST : 09268-31014
09268-41110
09268-41300
09268-41700
95336-08070
(4) Tie the clamp and adapter together with a tie band as shown in the illustration.
Text in Illustration
SST : 09268-31014
09268-41110
09268-41300
09268-41800
(5) Set the injector assembly in a 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 assembly 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.
Injection Volume:
Difference between each injector:
13 cc (0.8 cu.in.) or less
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
If fuel drop is not as specified, replace the fuel injector assembly.