GM's EFI control modules, released in 2010, are state of the art fuel injection technology. The Fifth-Generation, State-of-the-Art,
Electronic Control Module (ECM), released in 2010 is a key factor in GM's MEFI success story. GM Powertrain's
Electronic Control Module (ECM), which
was developed specifically for the marine industry monitors engine continuously. GM Powertrain's fifth-generation ECM has several
important capabilities and features.
. Improved throttle and governor controls to
enhance industrial engine capability
. Refined cruise governor controls capable of
accepting multiple speed signal inputs. Includes
variable frequency, pulse/mi and CAN-based
inputs
. Improved fuel controls to aid industrial
applications
. Enhanced CAN communications for better system
integration with onboard controllers.
The Enhanced EFI Software itself is fairly impressive as well. It boasts the several additional system improvements to their already industry leading lineup:
. Controller Area Network (CAN) Bus
Enhancements
. Significant increase to the number of
J1939 broadcast messages
. Option to interface EGR input to fuel level
sensor to broadcast on CAN
. J1939/73 Diagnostics and Service Tool
interface
. Support for CAN-based calibration tools
. Fuel Control Enhancements
. Sequential Fuel Injection ( SFI ) with End of
Injection Timing ( EOIT ) is used in conjunction
with bank to bank closed loop control to improve
startability, driveability, and engine-out emissions.
. Improved fuel control algorithms
. Idle Control Enhancements
. Improved idle control algorithm
. Idle Fuel Control
. ETC/Governor Control Enhancements
. Knock Control and Octane Rating Enhancements
. EGR Revisions to Allow for Alternate Uses of EGR
