
Engine General Information and Diagnosis: Bi-Fuel LPG model 1A-6
Freeze frame data clearance
The freeze frame data is cleared at the same time as
clearance of DTC.
DLC Description
AENAR90A1101004
DLC (1) is in compliance with SAE J1962 in its
installation position, the shape of connector and pin
assignment.
OBD CAN Hi line (6) and Low line (3) (CAN line of ISO
15765-4) are used for SUZUKI scan tool (7) or CAN
communication OBD generic scan tool to communicate
with ECM and LPG control module.
Engine and Emission Control System
Description
AENAR90A1101006
The engine and emission control system is divided into 4
major sub-systems: air intake system, fuel delivery
system, electronic control system and emission control
system.
The air intake system includes air cleaner, throttle body,
ISC valve and intake manifold.
The fuel delivery system includes fuel pump / LPG tank
valve, petrol fuel delivery pipe / LPG fuel delivery pipe,
petrol fuel pressure regulator / LPG pressure regulator,
petrol fuel injectors / LPG fuel injectors, etc.
The electronic control system includes ECM, LPG
control module, various sensors and controlled devices.
The emission control system includes EVAP and PCV
systems.
When hoses are disconnected and system components
are removed for service, be sure to reinstall components
properly and route and connect hoses correctly after
service.
Bi-Fuel LPG System Description
AENAR90A1101007
Bi-fuel LPG system consists of two kinds of fuel system
(petrol and LPG).
LPG system, which consists of LPG fuel supply system
and LPG fuel injection system, is added to conventional
petrol system. Vehicle runs using either petrol or LPG.
For detail about fuel system, refer to “Fuel System
Description”: LPG in Section 1G.
Bi-fuel LPG system is equipped with fuel select switch
and operating mode can be selected from three modes
by fuel select switch as follows.
When ignition switch is turned to ON position, operating
mode is “Petrol MODE” or “AUTO MODE”.
Petrol MODE
During “Petrol MODE”, engine runs on petrol only.
Operating mode can be switched between “Petrol
MODE” and “AUTO MODE” at every push of fuel select
switch when ignition switch is on with engine stopped, or
when engine is running.
AUTO MODE
During “AUTO MODE”, engine starts in petrol system
and then the system automatically switches to LPG
system, depending on the condition of LPG fuel
temperature and engine warming up.
Operating mode can be switched between “AUTO
MODE” and “Petrol MODE” at every push of fuel select
switch when ignition switch is on with engine stopped, or
when engine is running.
Forced LPG MODE
Operating mode does not enter “Forced LPG MODE”
when LPG fuel temperature is low.
During “Forced LPG MODE”, engine runs on LPG only.
“Forced LPG MODE” can be selected by pushing and
holding fuel select switch for more than eight seconds
when ignition switch is on with engine stopped.
If ignition switch is turned to OFF position and then
turned to ON position again under “Forced LPG MODE”,
operating mode is switched to “AUTO MODE”.
Petrol / LPG Indicator
Petrol / LPG indicator is on fuel select switch. Petrol /
LPG indicator lights up or blinks depending on selected
operating mode. For details, refer to “Selector Switch
Description (Bi-Fuel LPG Model)”: in Section 9C.
2. B + (Continuously battery power)
4. ECM ground (Signal ground)
5. Vehicle body ground (Chassis ground)
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I9R90A111002-01
Содержание Wagon R
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