This Package uses systems from GPR Diesel to control specific output functions on the 1KD Hilux.
ECU Power and Engine Stopping
When the Ignition Switch is initially turned on, the M1 is powered from the ignition switch IGSW signal via a diode in the Adaptor Box. Once the M1 powers up, it immediately turns on the ECU Main Relay by means of the MREL signal. This provides normal power to the ECU and the diode no longer actively supplies power.
The M1 also uses the ignition switch IGSW signal via UDIG3, configured via Driver Switch 1 into the Engine Run Switch. This allows a controlled shutdown of the diesel engine when the ignition switch is turned off, by means of the Throttle Aim Shutdown setting.
The Engine Run Switch also maintains power to the Main Relay and turns off the Main Relay 5 seconds after the ignition is turned off.
If the M1 is connected to M1 Tune, the Main Relay will also remain turned on even when the ignition switch is turned off.
A second relay (Injector EDU Supply Relay) is controlled by the IREL signal. This relay is turned on whenever the engine is turning.
Dash Coolant Temperature Gauge
A PWM signal drives the PHWO signal to the Dashboard Temperature Gauge from the ECU. In this Package the Toyota Hilux Coolant Temperature Gauge table is configured to provide this signal.
Injector Control
Fuel Injectors 1 to 4 are controlled by the Injector Driver (EDU) by means of the #1, #2, #3 and #4 signals, which are provided in the M1 by the Fuel Cylinder 1 Primary to Fuel Cylinder 4 Primary subsystems.
This is achieved by using Ignition Low Side outputs with inverted logic to provide the required control signals for the EDU. The Fuel Cylinder 1 – 4 Primary Output Resource and Fuel Cylinder 1 Primary Output Polarity settings should not be changed.
Fuel Pressure Relief Valve
The Pressure Discharge Valve is controlled by the Injector Driver (EDU) by means of the PRD signal, which is provided in the M1 by the Fuel Pressure Primary Direct Relief subsystem.
Exhaust Gas Recirculation
This Package suits Euro 4 (non-DPF) versions of the 1KD-FTV vehicle. These engines use PWM control of three actuators to operate the EGR system.
The EGR solenoid is controlled by the EGR signal from the M1 Exhaust Gas Recirculation Actuator Solenoid Normal Output.
The EGR Cut Valve is controlled by the EGRC signal from the M1 Exhaust Gas Recirculation Cut Solenoid Output. This valve is activated when the EGR control is stopped to improve EGR valve closure and improve driveability.
The EGR Cooler Bypass Switching Valve is controlled by the ECBV signal from the M1 Exhaust Gas Recirculation Flap Actuator Output.
The EGR Valve Position Sensor EGLS signal monitors position via the M1 Exhaust Gas Recirculation Actuator Feedback channel.
For detailed guidance on this system please visit https://www.motec.com.au/webinars-view/webinararchive/#M1ECU - select M1 Diesel Tuning Part 5.
Alternator
The Package is not configured for alternator control so the alternator operates in default mode, which has an aim voltage of approximately 14.0V.
Control settings for this alternator may be configured if default operation is not sufficient for normal electrical loads.
Swirl Control
Euro 4 (non-DPF) engines use a 3 stage swirl control valve in the inlet manifold, which is controlled by the Swirl Control SCV signal and Swirl Control #2 SCV2 signal. The current M1 Package implements only the SCV channel, however, the adaptor box has provision for the SCV2 channel.
Glow Plugs
The Glow Relay is controlled by the GREL signal which, in the M1, is provided by the Glow Plug subsystem.
The Dashboard Glow Indicator is controlled by the GIND signal, which is provided by Glow Plug Light subsystem.
VNT Turbo
As the VNT Turbo operates at high temperatures, the open and closed position of the vanes may change over time. In some cases the vane mechanism may jam if the open and closed positions are not closely matched in the M1 Package settings.
It is advisable to manually test the open and closed positions of the VNT when installing a kit for the first time, and, if necessary, manually reset the open and closed positions.
