1A-7 Engine General Information and Diagnosis: Bi-Fuel LPG model
Bi-Fuel LPG System Construction
AENAR90A1101008
Bi-Fuel LPG System Component Description
AENAR90A1101009
LPG Control Module
LPG control module controls the fuel system as follows,
based on the signals from ECM and sensors related to
LPG system.
Fuel injection control
ECM and LPG control module judge the fuel system
depending on the signal from fuel select switch.
Therefore, LPG control module switches built-in three
fuel control relays and controls petrol fuel injector or LPG
fuel injector.
LPG shut off valve power supply control
LPG control module drives LPG valve control relay for
power supply to shut off valve of LPG tank valve and
shut off valve of LPG pressure regulator.
LPG shut off valve control
During “Forced LPG MODE” or LPG control in “AUTO
MODE”, LPG control module opens shut off valve of
LPG tank valve and shut off valve of LPG pressure
regulator to supply LPG fuel, and closes them during
“Petrol MODE” or petrol control in “AUTO MODE”.
Indicator control
• LPG control module calculates remaining LPG in LPG
tank based on LPG level sensor signal, and then
indicates the remaining LPG by LPG indicator on fuel
select switch.
• LPG control module selects fuel system based on
signal from fuel select switch and ECM, and then
indicates selected fuel system by petrol / LPG
indicator on fuel select switch.
• LPG warning light lights up or blinks when LPG
control module detects malfunction related to bi-fuel
LPG system.
4
5
6
A1
A2
A3
B1
B2
B3
C1
C2
C3
1
18
19
22
2
7
8
9
10
11
12
13
14
16
17
20
23
24
3
25
26
27
21
15
IAR90A110031-01
A1: Fuel injector No.1 control signal from ECM
4. Fuel control relay No.1
16. Fuel select switch
A2: Fuel injector No.2 control signal from ECM
5. Fuel control relay No.2
17. Fuel tank
A3: Fuel injector No.3 control signal from ECM
6. Fuel control relay No.3
18. LPG tank
B1: Petrol fuel injector No.1 control signal
7. Petrol fuel injector No.1
19. LPG tank valve
B2: Petrol fuel injector No.2 control signal
8. Petrol fuel injector No.2
20. Shut off valve of LPG tank valve
B3: Petrol fuel injector No.3 control signal
9. Petrol fuel injector No.3
21. Manual valve of LPG tank valve
C1: LPG fuel injector No.1 control signal
10. LPG fuel injector No.1
22. LPG level sensor of LPG tank valve
C2: LPG fuel injector No.2 control signal
11. LPG fuel injector No.2
23. LPG fuel delivery pipe
C3: LPG fuel injector No.3 control signal
12. LPG fuel injector No.3
24. Petrol fuel delivery pipe
1. ECM
13. LPG pressure-and-temperature sensor
25. LPG receptacle
2. LPG control module
14. LPG pressure regulator
26. LPG fuel filter
3. CPU
15. Shut off valve of LPG pressure regulator
27. LPG valve control relay
Содержание Wagon R
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