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A ground is a ground.
But in the case of grounding the PCM its main ground wire should be as close as possible to it.
 

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I have been having cam sensors issues, could this be the reason?
Its definitely in the realm of possibility...won't know until you bolt it down then clear any CEL codes.
That ground strap was there for a reason.

How did that ground wire come to be disconnected?
From the factory? Engine repairs? Etc.?
 

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Discussion Starter · #7 ·
Its definitely in the realm of possibility...won't know until you bolt it down then clear any CEL codes.
That ground strap was there for a reason.

How did that ground wire come to be disconnected?
From the factory? Engine repairs? Etc.?
A minor valve job was done about a month ago. The car still drives like shit, so sounds like I need to clear the codes?
 

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AHH ok, thanks for the update.
Clear the CEL codes and if they come back again, post them here.

Personally never heard of a 'minor' valve job.
 

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Procharged 2020 Jeep Grand Cherokee Trailhawk, 5.7 Hemi
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To answer the OPs question.

There are 3 bolts that hold the PCM to the mount. The single bolt, closest to the engine. Remove that bolt and run the bolt through the ground strap and tighten.

It is the ground for the PCM.
 
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