Toyota 4-Runner 1985 Repair Manual page 220

EFI SYSTEM - Fuel System
FI-51
Do not remove
Original Pipe - - (
~
SST
FI0577
SST
Fuel Filter
4. REMOVE DELIVERY PIPE WITH INJECTORS
Remove two bolts and then remove the delivery pipe with
the injectors.
NOTE:
1. When removing the delivery pipe, be careful not to
drop the injectors.
2. Do not remove the injector cover.
INSPECTION OF INJECTOR
1. TEST INJECTION OF INJECTORS
CAUTION: Keep clear of sparks during the test.
(a) Connect the SST to the fuel filter outlet.
SST 09268-41045
(b) Connect the SST to the pressure regulator and the
injector.
SST 09268-41045
(c) Hold the injector and hose with SST.
SST 09842-30020
(d) Put the injector into the graduated cylinder.
NOTE: Install a suitable vinyl hose onto the injector to pre-
vent gasoline from splashing out.
(e) Connect the ground cable to the battery.
(f)
Turn the ignition switch ON.
NOTE: Do not start the engine.
(g) Using a service wire, short both terminals of the fuel
pump check connector.
NOTE: Fuel pump will operate.
(h)
Connect the SST to the battery for 1 5 seconds and
measure the injection volume with a graduated
cylinder.
Test each injector two or three times.lf not within
specified volume, clean or replace.
SST 09842-30020
Volume: 40 - 50 cc/15 sec. (2.4 - 3.1 cu in.)
Difference between each injector: Less than 6 cc
(0.37
cu in.)