ECU grounding with insulated ECU casing

K-Series Programmable ECU installation questions / support issues
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thomasn
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Joined: Thu Aug 30, 2018 1:33 am

ECU grounding with insulated ECU casing

Post by thomasn » Wed Jan 02, 2019 7:09 am

Hi,

i'm running a K-Pro in an Ariel Atom, with rigid engine mounts : so i need to insulate the ECU case from the chassis with silent blocks to prevent it from breaking due to vibrations.

I'll bolt a ground wire from the chassis to one of the ECU cover bolts, but i'm wondering if this ground wire has to be large (lot of current to return to chassis or not a lot (if my engine grounds are ok)) ?

Or maybe un-necessary to ground the ECU case to chassis if engine grounds are good ?

Thanks.

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Hondata
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Re: ECU grounding with insulated ECU casing

Post by Hondata » Wed Jan 02, 2019 10:25 am

There is no need to ground the ECU case. I don't think the case is connected to anything internally, but it may cause a ground loop.
Hondata

thomasn
Posts: 16
Joined: Thu Aug 30, 2018 1:33 am

Re: ECU grounding with insulated ECU casing

Post by thomasn » Thu Jan 03, 2019 11:54 am

Oh ok, i was thinking the ECU needed to be grounded

Thanks

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