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Thread: Bad PCM 2005 ls2?
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02-09-2015 #1
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- Oct 2012
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Might not hurt to pop a valve cover and check for a mechanical issue. We had a Chevy pickup that was similar, would code a certain cylinder misfire but not all of the time. Turned out it was a broken valve spring. Never made noise, would just misfire occasionally once it was warmed up.
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