2
–
LPG fuel system Data Link Connector (DLC) (left-hand drive vehicles)
4
–
LPG fuel supply manifold
5
–
LPG fuel vaporizer and filter
6
-
Alternative fuel control module
7
-
LPG fuel system DLC (right-hand drive vehicles)
LPG Select Switch
The LPG select switch is located in the center console. The switch outputs a 12 volt signal to the alternative fuel control module which opens the LPG fuel shutoff solenoid inside the fuel vaporizer and the fuel tank solenoid valve inside the fuel tank. An integrated light emitting diode indicator (LED) is illuminated when the switch is activated. The LPG select switch will not illuminate if the vehicle is running on petrol.
LPG Fuel Injectors
The sequential LPG fuel injectors are located on the underside of the intake manifold and are controlled by the LPG alternative fuel control module.
LPG Fuel Vaporizer
The LPG fuel vaporizer changes liquid gas from the LPG tank to a dry gas. The vaporizer is connected to the engine coolant system and will only switch to LPG if the coolant temperature is above 10 degrees centigrade.
Alternative Fuel Control Module
The alternative fuel control module monitors the various engine sensors when the vehicle is operating on LPG. If the LPG fuel tank runs dry or the engine is operating on a weak fuel mixture the alternative fuel control module will pick up a signal from the heated oxygen sensor (HO2S) and switch the vehicle to petrol operation.
LPG Fuel System DLC
The LPG fuel system is diagnosed through a separate DLC. WDS connects to this DLC and will diagnose any alternative fuel system concerns.
