That Mustang Guy
Member
Just from things I have seen over the years, My guess without being with the car would be Wiring, ECU, or the timing chain just strait wore out AKA stretched. When the chain is stretched you can see timing jumping around due to spring pressure on the camshaft putting tension on the upper sprocket and causing the chain to tighten and loosen. Basically, it's snatching the shit out of the chain.
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