Knock module on M400

Discussion and support for MoTeC's previous generation ECUs.

Knock module on M400

Postby MyRaw on Wed Oct 11, 2023 9:30 pm

Good morning,
I'm trying to connect a knock motec module onto an M400. the manual says to connect the knock window to inj8...but the M400 only has the option of 4 injectors..What pin can I connect to?
Thank you
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Re: Knock module on M400

Postby pooh_bear on Sun Oct 29, 2023 11:52 am

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Re: Knock module on M400

Postby cotje on Sat Feb 10, 2024 7:05 am

Did try the same and encountered this was not working, despite the docs and claims on this forum.
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Re: Knock module on M400

Postby pooh_bear on Sat Feb 10, 2024 7:51 am

The manual says:

Select injector/ignition out [#]
Select injector or ignition output the SKM//OKM is wired to.
Note: For M400/M600 Inj8 must be used.

So as others have asked, Inj8 does not exist in an M400 or M600.

And if using a 4 cylinder/6 cylinder engine with M400/M600 there will be no spare inj outputs.

Someone must know the answer?
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Re: Knock module on M400

Postby Stephen Dean on Mon Feb 12, 2024 9:27 am

I have just followed the configuration process as laid out in the SKM Manual using an M400 on my test bench, and all of the functionality is able to be configured, including Injector 8 as the Knock Window.

The ECU Manager does not have the smarts to hide Inputs and Outputs depending on the ECU selected, so the Injectors 5 through to 8 are visible in the Manager, even though they are no active in the ECU.
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Re: Knock module on M400

Postby pooh_bear on Mon Feb 12, 2024 9:29 am

Stephen Dean wrote:I have just followed the configuration process as laid out in the SKM Manual using an M400 on my test bench, and all of the functionality is able to be configured, including Injector 8 as the Knock Window.

The ECU Manager does not have the smarts to hide Inputs and Outputs depending on the ECU selected, so the Injectors 5 through to 8 are visible in the Manager, even though they are no active in the ECU.


Thanks for clarifying!
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Re: Knock module on M400

Postby cotje on Wed Feb 14, 2024 5:26 am

Stephen Dean wrote:I have just followed the configuration process as laid out in the SKM Manual using an M400 on my test bench, and all of the functionality is able to be configured, including Injector 8 as the Knock Window.

The ECU Manager does not have the smarts to hide Inputs and Outputs depending on the ECU selected, so the Injectors 5 through to 8 are visible in the Manager, even though they are no active in the ECU.


Hi Stephen,

That is very interesting! I did the same and with INJ8 configured I cannot send the config to the M400. What am I missing here? Can you share your file to compare?
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Re: Knock module on M400

Postby Stephen Dean on Wed Feb 14, 2024 8:48 am

Here it is.
Attachments
StartM400.e35
(72 KiB) Downloaded 20 times
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Re: Knock module on M400

Postby cotje on Thu Feb 15, 2024 5:56 am

Stephen Dean wrote:Here it is.

Awesome! Will test this on my friends car (with M400) and report back.
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