Join Date: Jan 2009
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That dead pedal that you are describing generally goes hand in hand with 1 of 2 things. Either a failing VP44 or a failing APPS. The code that you are throwing P0122 is APPS input below the acceptable minimum voltage. P1693 is a companion code, all it means is that an error has been detected in either the PCM or ECM. What APPS are you running? That is the direction I would be looking towards right now.
2000 2500 reg. cab 4x4 auto 577hp
09 6.7L QC LB stick, 4x4.
TOTAL PERFORMANCE DIESEL 707-545-FUEL (3835)