Quote:
Originally Posted by cleatus12r
Joe,
It's more of a nuisance code. It's no big deal. It has to do with the PCM commanding wastegate operation but the boost still climbing.
The sound you are hearing during the 2-3 shift is turbo stall. It's not good for the turbo at all. There is a lot of boost in the intake tract when under load at high rpm. When the transmission shifts, the need for all of that boost is diminished slightly and the air has nowhere to go but back out of the turbocharger compressor. You will not hear a wastegate open.
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Cody, is that where the torque reduction map comes into play??
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DJ Phoenix (my modded) Hi-1200/240Tow/75FS/80DD/100/140SS +Minotaur
ASE Master Auto Technician 
2001 Ford Excursion 7.3 4x4
Projects. 1970's Hustler and Max II Amphibious ATV's
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Fri, May 8th, 2009, 10:56 PM
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