Electrical problem? Ignition coils? Pease help! - Mustang Evolution

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Old 08-21-2014, 10:46 AM   #1
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Electrical problem? Ignition coils? Pease help!

So I'm not sure exactly what's going on but here's my problem. So I was driving my 99 cobra on the freeway, and it started missing intermittently after about 20 minutes. The car would die for about 2-3 seconds, then come back. It started happening a few minutes apart at first, then progressively got worse and worse. When it was running/idling, it sounds normal, it just kinda dies randomly. After getting home I got these codes thrown at me:
Ignition coil A
Primary/secondary okt

I got 7 other codes, p0352-p0358, with the same descriptions for ignition coils b-h.

I'm assuming it's some kind of electrical/connection issue? Hopefully an easy fix?

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Old 08-22-2014, 10:00 PM   #2
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The problem could be in the wiring harness for the coils. Lightly bend and flex the harness back and forth along it's entire length, with the engine running, and see if the idle changes or the engine dies.
There is one wire that supplies power to all eight coils. It passes through two splices were it branches into four wires each. The trouble may be the splices.
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