Toyota 8FDU15, Manual

Page: 590 / 618

3-21
Inspect distributor cap and resistive cord
(Refer to parts inspection and adjustment 10,
11)
OK
Repair or replace
NG
Inspect wire harness and connectors related to
the air-fuel ratio controll system
OK
Repair or replace
NG
Inspect inner vent system
(1) Check inner vent tube for damage, bent or
disconnection
(2) Check resonator for damage
Inspect O
2
sensor feedback
(Refer to parts inspection and adjustment 14)
Inspect LPG regulator primary pressure
(Refer to parts inspection and adjustment 1)
OK
NG Adjust primary pressure of LPG regulator
(Refer to parts inspection and adjustment 2)
To injector system (3-33)
NG
Inspect injector operation and inspect for
blockages
(Refer to parts inspection and adjustment 6, 7)
OK
O
2
Sensor system defect
NG
OK
Replace distributor cap and resistive cord
NG
OK
Replace ignition coil
NG
Inspect ignition coil
(Refer to parts inspection and adjustment 12)
OK
To air-fuel ratio control motor system
(Refer to page 3-35)
NG
Inspect air-fuel ratio control motor operation
(Refer to parts inspection and adjustment 5)
OK
OK
Clean or replace spark plug
NG
Inspect spark plugs
(1) Check that there is no obvious deposition.
(2) Inspect the plug gap.
Standard: 0.7 to 1.0 mm (0.028 to 0.039 in)
Replace engine ECU
03.book 21 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