P0476 on the 7.3L Power Stroke Diesel

Using a “VEEPEAK Mini OBDII Diagnostic Scanner” model VP01 and FORSCAN app on my iPAD for code reading and diagnostic tests. In addition to reading codes, has a list of diagnostic tests.  Including the famous “buzz test”.  That alone makes it worth the price.  Not sure if it’s the app or the hardware flaking out, but lately I’ve been getting…

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