Toyota 4A-FE Repair Manual page 121

Check Connector
4A-FE Cold Start
, 4
Injector Connecto!_
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Cold Start
Injector Connector
EFI SYSTEM - Fuel
System
Fl-95
F14-0J4
EM7503
F14232
Fl4577
ON-VEHICLE INSPECTION
1. CHECK FUEL PUMP OPERATION
(a) Turn the ignition to ON.
HINT: Do not start the engine.
(b) Using SST, connect terminals
+
B and FP of the
check connector.
SST 09843-1 8020
LOCATION: See page Fl-133
(c}
Check that there is pressure in the hose from the fuel
filter.
HINT : At this time, you will hear fuel return noise from
the pressure regulator.
(d)
Remove SST from the check connector.
SST 09843-1 8020
(e) Turn the ignition switch to OFF.
If there is no pressure, check the following parts:
• Fusible links
• Fuses
• EFl main relay
• Circuit opening relay
• Fuel pump
• ECU
• Wiring connections
2. INSPECT FUEL PRESSURE
(a) Check that the battery voltage is above 1 2 V.
(b) Disconnect the cable from the negative ( - ) terminal
of the battery.
(c) Disconnect the wiring connector from the cold start
injector.