Woodsman experts enter please. De-rated power message

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dichrixon

dichrixon

ArboristSite Lurker
Joined
Mar 28, 2015
Messages
42
Location
taxachussetts
Hey guys. My crane crew runs a 790 grapple chipper with the 375 horse John Deere. We have been getting a "de-rated power" message with a trouble code for "variable geometry turbocharger mismatch". Any of you guys run into this before? I'm trying to save my crew from having to run the Vermeer bc2000 while the Woodsman is at the Deere shop.

Thanks!
 
diezelsmoke

diezelsmoke

ArboristSite Operative
Joined
Nov 2, 2012
Messages
151
Location
wi
Probably 1 of 2 things, either the actuator is sticking/bad or the VGT portion of the turbo sticking. Unhook the actuator and operate the VGT and see if it operates smoothly. Not sure what the setup looks like, probably still under warranty. If you want to look at it just don't make any adjustments to the actuator because you wont be able to re-calibrate the 2 together yourself.
 
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