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Grimlin in my ECM

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Ok, I thought I fixed my idle problem with a apps. It ran just fine for about 4 days no rump rump or anything, well its back. List of things done - second new apps,vp44,cam sensor,fuel pressure airdog 13.50lbs,tried ecm off another truck,tired turbo off anothre truck. One thing I have noticed is it only does it when eng. has been driven at hwy speed for a little while,does not rump rump at all when just idel around town. :thud

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