Injector Flow Check

1. Inspect Injector Flow

CAUTION: Keep injector clear of sparks during the test.






a. Disconnect the fuel hose from the fuel filter outlet.






b. Connect the SST (union and hose) to the fuel filter outlet. [SST 09268-41045 (90405-09015)]

HINT: Use the vehicle's fuel filter.






c. Remove the fuel pressure regulator.

d. Connect the fuel return hose and SST (hose) to the pressure regulator with SST (union). new gaskets and union bolt. [SST 09268-41045 (09268-41080. 09268-41090)]






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

SST 09268-41045

f. Put the injector into a graduated cylinder.

HINT: Install a suitable vinyl tube on the injector to prevent gasoline from splashing out.

g. Reconnect the battery negative (-) cable.

h. Turn the ignition switch ON.

NOTE: Do not start the engine.






i. Using SST, connect terminals +B and FP of the data link connector 1. (SST 09843 - 18020)






j. Connect SST (wire) to the injector and battery for 15 seconds and measure the injection volume with the graduated cylinder. Test each injector 2 or 3 times. (SST 09842-30070)

Injection volume: 34 - 44 cm3 (2.1 - 2.7 cu in.)/15 sec.

Difference between each injector: 5 cm3 (0.3 cu in.) or less

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

2. Inspect Leakage

Checking Fuel Injector Leakage:

a. In the condition above. disconnect test probes of SST (wire) from the battery and check for fuel leakage from the injector. (SST 09842-30070)

Fuel drop: One drop or less per 3 minutes

b. Disconnect the battery negative (-) cable.

c. Remove SST. (SST 09268-41045 and 09843-18020)