Toyota 8FDU15, Manual

Page: 602 / 618

3-33
z
LPG INJECTOR SYSTEM
Measure the voltage between
INJ - E1 terminals of the
engine ECU.
Standard: 10 to 14 V
OK
Inspect LPG injectors
(Refer to parts
inspection and
adjustment 6, 7)
NG
Inspect the solenoid resistor
(1) Inspect the resistance
value of the solenoid
resistor.
Standard: 5.7 to 6.3 : (20 ° C)
[68 ° F]
NG
Replace the solenoid
resistor
OK
Inspect the wire harness and
connectors between engine
ECU - solenoid resistor
(Refer to the wiring diagram at
the back of the book)
NG
Repair wire harness
and connectors
OK
Inspect or replace engine
ECU
Clean or replace injectors
NG
Inspect the injectors for air-tightness
(Refer to parts inspection and adjustment 6)
OK
Perform startup operation inspection and
idle operation inspection of injectors.
(Refer to parts inspection and adjustment 6)
Inspect or replace engine ECU
Inspect and repair the STA system
OK
To *A
NG (Only during startup)
To *B
NG
Measure the voltage between
RES - E1 terminals of the engine ECU.
Standard: 10 to 14 V
NG
OK
Inspect LPG injectors
(Refer to parts inspection and
adjustment 6, 7)
Measure the voltage between INJ - E1
terminals of the engine ECU.
Standard: 10 to 14 V
NG
Inspect wire harness and
connectors between INJ - E1
of the engine ECU
Repair wire harness
and connectors
OK
Inspect or replace engine ECU
Measure the voltage between STA - E1
terminals of the engine ECU.
Standard: 10 to 14 V
OK
*A
NG
Clean or replace injectors
03.book 33 ページ ２００７年２月２２日 木曜日 午後４時４７分
LPG Device for 4Y-E Engine
Section 1.3.3