Engine Feels like a misfire at low rpms.

___HOSS

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Jan 12, 2020
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So this is my first time owning this gen of Mustang (S 197). I have new coils MSD and new motorcraft plugs. I feel I get a misfire at low RPMs when accelerating. Hear it good in the exhaust too as I have muffler deletes. It was doing it before I added the cold air kit and underdrive pulleys and tune. There are no codes and no check engine light. Thanks in advance.
 
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Noobz347

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When I see threads like this, it's the MSD coils that endup up being the culprit more than half the time.

They are not equal in quality to the OEM coils and it's easy to get one that doesn't cooperate.
 

Bullitt95

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MSD = My Spark Disappeared

Before we blame the coils, it's possible you might have accidentally got some anti-seize compound on the ground electrode of one of the plugs. You might want to check.