Small boost numbers or is my tuner stupid? - Ford Powerstroke Diesel Forum
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Old 03-19-2013, 11:25 PM
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Small boost numbers or is my tuner stupid?

I'm running an Edge Juice with Attitude (don't judge, it was free!) in my e99 F350, and the screen says that I'm only building 6.7 lbs of boost on Extreme? My turbo is in perfect shape and I don't have leaky boots anywhere, so I'm curious what the problem might be?? I hope somebody else has encountered this before! Any ideas would be greatly appreciated!
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Old 03-19-2013, 11:41 PM
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Your truck would be a smokey pig if boost was that low. Is it reading boost off of the MAP sensor or a separate input/sensor for boost? I am assuming you have done a boost leak test to confirm no leaks as well.
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Old 03-20-2013, 01:06 AM
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I'm not sure if it reads the boost off of the MAP sensor or the MAT sensor because it plugs into both. I don't really know much about it honestly... but it builds plenty of power and it'll put you back in your seat when the turbo spools, so it feels like it's building plenty of boost... and it doesn't smoke any more than my buddies truck with the same setup.
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Old 03-20-2013, 09:41 AM
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I am not sure how the Edge units are ran, so that is why I asked. You may want to figure that out though. It sounds as if you actually have good boost, but whatever the monitor is reading from is giving out a bad signal.
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Old 03-20-2013, 10:32 AM
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If there is condensation in the lines it could be messing with the elecrical signal coming from the wheatstone bridge in the map sensor, which would also effect the gauge ( not electricaly but if the line has moisture in it it could be effecting both)
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