M84 Knock sensors

Discussion and support for MoTeC's previous generation of entry level ECUs

M84 Knock sensors

Postby Jimster on Thu Jan 28, 2021 8:50 pm

Hi There,

is it possible to connect knock sensors to the M84 directly, or would I need an additional interface?


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Re: M84 Knock sensors

Postby SDean on Fri Jan 29, 2021 7:31 am


The M84 does not have support for knock sensors in the hardware and is not able to use an external device for this either as there is no support in the Firmware for any knock control.
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Re: M84 Knock sensors

Postby Vlad on Sun Mar 14, 2021 1:36 am

You can do a ignition trim based on a 0-5v from a external knock detection device (ex Phormula KS, etc) but is not very effective, as it's only momentarily, and you cannot set the severity of it's reaction... Might save the engine in one or two cases thow
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