Wiring Harness pulling on the ECM connector... - Hyundai Forums : Hyundai Forum
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post #1 of 2 (permalink) Old 01-26-2017, 09:59 AM Thread Starter
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Wiring Harness pulling on the ECM connector...

Hi Folks,

Has anyone else had an issue where movement of the motor was causing the top connector of the ECM wiring harness to get pulled on?

I was having a cylinder 4 misfire, had the ECM replaced. Issue came back 5 months later. Turns out 4 is at the top of the connector that's on top of the ECM. When you push the top of connector onto the ECM, it stops misfiring.

I may need to have a motor mount replaced, haven't checked that yet. But has anyone else had issues with not enough slack in the wiring harness to the ECM? And if so, what did you do to fix it?

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post #2 of 2 (permalink) Old 01-29-2017, 03:47 PM
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I just took a look at my 07 while checking fluid levels. I can't see any reason for the connector you mention to be pulled on. Are you aware of any work performed on the vehicle that might have caused harness misrouting? I changed the whole engine/transaxle/subframe assembly *with* complete wiring harness (pics below) last autumn and was careful to route the wiring the same way it was from the assembly plant. Now if you do have a torn engine anti-roll mount that could be a game changer.

If you want me to take a pic of my van's harness in that area I will do that and post it. I would have done it today but a clean shot will require air filter top cover removal.
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Last edited by Pete in PA; 01-29-2017 at 03:50 PM.
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