M1 E888 Receive only

[Anthony]

Is there any way/plans to allow M1 to receive E888 data but not transmit to it?

Im currently running - M1, E888, LTC, C1 Dash

I haven't enabled the E888 in the M1 due to it not making it possible to use the E888 outputs configured in the C1 (when I did they went haywire and bounced between on/off. I'm assuming this is due to the ECU turning the input off when the C1 is turning it on)

This has meant my EGT's and other sensors are needing to be transmitted by the C1 to the M1 as a work around, its not really a bad thing just more time consuming to set-up.

Not sure if there is a better way to do this?

[adrian]

I have added a feature request to our system to allow you to disable the output CAN messaging from the GP packages when not needed.

At the moment your workaround is the only way to do it.

[Anthony]

I have added a feature request to our system to allow you to disable the output CAN messaging from the GP packages when not needed.

At the moment your workaround is the only way to do it.

Thanks, will keep an eye on the release notes

[Anthony]

Has there been any progress on this?

[FredL]

Bump to the thread – same issue here.

Setup: M150 ECU (GT86 package), LTC, E888, C127 Dash

I'm using the E888 for:
5 x EGT probes (configured in M1)
4 x AV inputs (additional sensors configured in M1)
Outputs for 2x external fuel pumps (all configured in M1)

Everything was working fine until I added an Accusump with an electronic valve. I wanted to control it using Dash User Conditions + a 3D table (as no functionality is available for accusump control in GT86 package).

As soon as the Dash sends the ON signal, the relay starts pulsing/clicking (M1 tries to turn it off, C127 turns it on).
I spent over a month debugging the wiring and configurations, thinking it was a wiring/configuration/hardware issue. I even tested with a second C127 – exact same behavior.

If I disable the E888, C127 control works as expected.
But I have already set up everything in M1, so routing control through the dash isn’t really a good workaround. I can't even think of how to control pumps over C127 in E888 and in M1 at the same time?


Instead of only adding a “disable M1 transmit to E888” option, I think there should be a way to prioritize devices and their CAN messages.
For example:
If C127 sends a command to the E888 output, M1 should not override it.
This would allow smarter control sharing between the ECU and Dash and any other Motec units.

Another example:
I have Pump 2 and Pump 3 configured in M1 (no priming function available for these in GT86 package). Pump1 is DI high pressure pump and OEM in-tank pumps in GT86 FPC control. I have external surge tank with 2 pumps, one of them needs to be primed.
Would love to use the Dash to prime them on ECU startup — currently not possible due to the same conflict.

Would appreciate any updates or workarounds on this!

[Anthony]

Given this has been sitting with no progress for 3+ years now, safe to say its low priority and probably not going to happen so a work around is likely the only option.

Can you share your configs?