Diesel Bombers - code Po478

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- - code Po478 (https://www.dieselbombers.com/99-03-7-3l-performance/106015-code-po478.html)

tony357

12-01-2012 08:29 AM

code Po478

I have a miss in my 1999 f250 super duty 7.3 turbo diesel will sometimes stall out has code P0478 ex pressure control valve high input..

Any one know where to start with this code?

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