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Power Strokes
6.4 Aftermarket
Just switched to a Gearhead tune and have problems
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[QUOTE="Crazysob, post: 1159357, member: 17700"] The x4 locks you out of dpf on tunes once you load custom tunes. I put it back on canned tunes and it's running fine now. Some people have been telling me that if it does it again to put it in neutral and it should fire up. I will see if I can get her going when I get home. The reason I thought sensors was because when I first fired her up the truck jumped to 900rpm at idle. That is what usually happens when the sensors aren't present in the exhaust. Then when you shut down it won't crank. [/QUOTE]
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6.4 Aftermarket
Just switched to a Gearhead tune and have problems
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