Fuel Injector: Testing and Inspection
1GR-FE FUEL: FUEL INJECTOR: INSPECTION
INSPECTION
1. INSPECT FUEL INJECTOR ASSEMBLY
(a) Check the resistance.
(1) Using an ohmmeter, measure the resistance between the terminals.
Standard resistance:
If the result is not as specified, replace the fuel injector.
(b) Check the injection volume.
NOTICE:
- Perform the test in a well-ventilated area away from naked for flames.
- Handle the fuel tube connector carefully.
(1) Install the fuel tube connector into SST (hose), then connect the tube connector to the fuel pipe.
SST: 09268-31011
95336-08070
09268-41500
CAUTION: Connect the fuel tube connector (quick type) after observing the precautions.
(2) Remove the fuel pressure regulator Removal.
(3) Install the O-ring onto the fuel inlet of the pressure regulator.
(4) Connect SST (hose) to the fuel inlet of the pressure regulator with another SST (union) and the 2 bolts.
SST: 09268-31011
09268-41091
95336-08070
Torque: 9.0 Nm (92 kgf-cm, 80 in-lbf)
(5) Connect the fuel return hose to the fuel outlet of the pressure regulator.
(6) Install a new O-ring onto the injector.
(7) Connect SST (adaptor and hose) to the injector and hold the injector and union with SST (clamp).
SST: 09268-31011
95336-08070
09268-41100
SST: 09268-41140
(8) Set the injector in a graduated cylinder.
CAUTION: Install a suitable vinyl tube onto the injector to prevent gasoline splashes.
(9) Connect the Techstream to the DLC3.
(10) Turn the ignition switch ON.
(11) Turn the Techstream ON.
(12) Select the following menu items: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / ON.
(13) Install SST onto the fuel injector.
(14) Connect SST to the battery, then measure the injection volume for 15 seconds. Perform the inspection 2 or 3 times, then calculate the average.
Standard::
NOTE: Always do the switching at the battery side.
If the result is not as specified, replace the fuel injector.
(c) Check for fuel leakage.
(1) When checking the injection volume, remove SST from the battery. Inspect the fuel leakage from the fuel injector.
Standard:
1 drop or less every 12 minutes.
If the result is not as specified, replace the fuel injector.