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Power Strokes
6.0 Tech
Surging turbo
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[QUOTE="KCTurbos, post: 974720, member: 13852"] what you are doing is watching the affect (change in boost)... you need to start looking for the cause! Watching boost will simply let you know what happened... not what is causing it to happen. Watch these parameters while the problem is happening to try to find a cause. If one of them is out of whack then it should help you to narrow it down. Do not check them at rest or with Key On Engine off... because that is not when the problem is happening. You need to watch them while the problem is happening to see which one of the is possible bad/shorting. ebp vgt duty cycle map maf iat etc... watching boost will tell you very little at this point. It is just a result of what the other sensor are doing. Also there is a chance that your vanes are still sticking. Maybe something got gummed up again [/QUOTE]
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