October 23, 2025  Suzuki and Hyundai protocols

We are pleased to announce that Engine Gateway now supports Suzuki outboard motors and Hyundai marine engines.

Hyundai SeasAll S270

To install update 1.50, you must first install update 1.49. After installing 1.49, wait for five short green LED signals and one long signal, after which the device will enter normal operating mode and can be updated to version 1.50 as usual.

We have slightly modified the configuration file. Now the protocols are enabled with a single line. For example, instead of:

       MEFI4B=ON

Now you need to specify:

       PROTOCOLS=MEFI4B

The following line will be written to the YDEGSAVE.TXT configuration file:

       PROTOCOLS=J1939,MEFI4B

The MEFI4B protocol is an extension of the J1939 protocol, so when MEFI4B is enabled, it is added automatically.

We have added comments to the YDEGSAVE.TXT file, so now you will need to refer to the manual less often when configuring the device. We are working on an updated manual that will reflect all the changes in the settings file.

Support for three-phase generators has also been added, and modern Raymarine displays will now be able to provide detailed data on all phases, not just summarized data on average power, voltage, and frequency.

Thanks to our users, we have received Hyundai SeasAll S270 engine records, and now you can see RPM, torque, instant fuel consumption, generator voltage, and coolant temperature on your plotters. We are waiting for additional records from users to add engine warnings and errors and engine hour data in the next product update.

Modern Suzuki outboard motors have two CAN buses. One is connected to the electronic throttle control handle (speed 500 kbps), the other to the Suzuki SMG4 display (speed 250 kbps). The buses have different protocols, and we have added support for both.

The internal bus protocol is enabled by setting:

       PROTOCOLS=SUZUKI,OPT1

This bus provides access to engine speed, voltage, trim angle, and gear position. We do not recommend connecting to this bus (4-pin connector with 120 Ohm terminators).

The instrument bus provides access to RPM, instantaneous fuel consumption, coolant temperature, voltage, engine hours, tilt/trim angle, and gear position. We are continuing to research this protocol and plan to add engine warnings and errors.

The connection is made to the tachometer connector (8 pins), and we plan to offer adapters for connection in the near future.

Installing the Engine Gateway eliminates the need to install the SMG4 device and saves space on the boat's dashboard.

We would be happy to add even more protocols to our remarkable device. If you have an unusual engine with a CAN interface, please contact us. Engine Gateway allows you to record data from the engine network on a memory card, which can be used to study its protocol. Engine Gateway can send messages from the engine network to the NMEA 2000 network and vice versa, but unless this is directly enabled by the user, it only reads data from the engine network, which virtually eliminates the possibility of our device affecting the engine's performance.

Firmware update for Engine Gateway is available on the Downloads page.

 

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