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Old 11-27-2013, 02:51 AM   #5
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Default Re: Help: Turbo louder than Normal, loss of power, CE Codes

So, you are getting 7 PSI Gauge Pressure when you put the PID BST in your ScanGauge?
Depending on your altitude, that's only equal to ~ 20-21 PSIA MAP (What your Sprinter's systems actually look and and use to give you
the correct Manifold Absolute Pressure (MAP).
At sea level altitude.... your MAP will read 14.7 PSIA at idle or with the engine off. (This is the ambient atmospheric pressure at sea level.
So your BST reading would be zero.
Add your 7 PSIG to the 14.7 PSIA (ambient @ sea level) and you get 21-22 PSIA MAP when it should be up around 34 PSIA.
Sounds like I agree with all the others have a turbo boost leak somewhere.
2014 Sprinter 516 series (3500 DRW) 170"/4325 mm wb Hi Top Short Back
OM-651 I4 2.143 liter two stage turbo charged with 36.9 PSIA MAP Limit Valve
7 Speed 7G-Tronic, manually shiftable, automatic transmission.
Suspension Seats, Active Safety Package +, Parktronic, OEM Hitch/wiring
OEM back up camera, Bi Xenon light package, fog lamps, headlight washers.
Had 2006 T1N 3500/158|2010 NCV3 519/3500/144|2011 & 2012 NCV3 519/3500 170
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