ECM SYSTEM
WG1605-G-E3,WG1605-L-E3,WG1605-GL-E3, DM
1-55
ENGINE CONTROL MODULE (ECM)
Figure 21: Bi-Fuel ECM Input and Outputs
In Kubota fuel systems, the Engine Control Module
(ECM) provides total control, of the engine, fuel control,
ignition spark control, and auxiliary features. The ECM
depends on Kubota designed wire harness, to receive
the required input data, from sensors, and sends the
appropriate outputs. The harness is specifically
designed to provide the necessary electrical supply, to
the engine, through the life of the equipment. All
electrical connectors utilize sealed connectors, to
prevent damage from moisture intrusion, necessary
shielding, when required, and protective covering, to
protect the wiring.
To obtain maximum effect from the catalyst and
accurate control of the air fuel ratio, the emissions
certified engine is attached with an onboard computer
known as the ECM. The ECM is a 32 bit controller, which
receives input data from sensors, fitted to the engine and
fuel system, and then outputs various signals, to control
engine operation.
Engine sensors are used for fuel calculation and
control, and are also used for the gasoline diagnostics.
Those sensors are defined in the sensor group, in this
section.
(1) BATTERY PLUS
(2) BATTERY MINUS
(3) ENGINE RPM
(4) ENGINE COOLANT
(5) ENGINE OIL
(6) CRANK SHAFT SENSOR
(7) INTAKE AIR TEMP
(8) MANIFOLD PRESSURE
(9) THROTTLE POSITION 1
(10) THROTTLE POSITION 2
(11) FOOT PEDAL POSITION
(12) PRE CAT HEGO
(13) POST CAT HEGO
(14) GASOLINE RETURNLESS
RAIL
(15) LPG / NATURAL GAS FUEL
PRESSURE
(16) LPG / NATURAL GAS FUEL
TEMP
(17) FUEL CONTROL LOCATION
(18) HIGH SPEED CAN LINK
(19) SPARK CONTROL TO
IGNITION COILS
(20) LPG / NATURAL GAS LOCK
OFF CONTROL
(21) THROTTLE SPEED
CONTROL
(22) DATA LINK CONNECTION
(23) DIAGNOSTIC TOOL
(24) MIL LIGHT
(25) GAGE OUTPUT
(26) INSTURMENT PANEL
(27) GASOLINE FUELPUMP
CONTROL
(28) GASOLINE RETURNLESS
RAIL
(29) GASOLINE INJECTORS
(30) FUEL METERING
CORRECTION
(31) HIGH SPEED CAN LINK
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