Fuel Injector Inspection

Inspect injector resistance.

1. Using an ohmmeter, measure the resistance between the terminals.
   

   Resistance:

   11.6 to 12.4 Ω at 20°C (68°F)
   

   If the resistance is not as specified, replace the injector.
   

Inspect the injection volume.

CAUTION:

This test involves high-pressure fuel and electricity. Take every precaution regarding safe handling of both the fuel and the electricity. Perform this test in a safe area, and avoid any sparks or flames. Do not smoke.

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

   SST

   09268-31012(09268-41500,90467-13001,95336-08070)
   

2. Install the O-ring to the fuel injector.
   





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

   SST

   09268-31012(90467-13001,95336-08070,09268-41140,09268-41400)
   

4. Put the injector into the graduated cylinder.
   

   CAUTION:

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

5. Operate the fuel pump (CAMRY_ACV40 RM000001IQZ03DX_01_0001.html).
   





6. 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.
   

   SST

   09842-30080
   

   Volume:

   84 to 100 cm³ (5.1 to 6.0 cu in.) in 15 seconds
   

   Difference between each injector:

   16 cm³ (0.98 cu in.) or less
   

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

Check for leakage.

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

   Fuel drop:

   1 drop or less in 16 minutes