2007 5.7 Hemi in 73 Plymouth Duster (pedal cuts out)

For what it’s worth, I can’t see mph on HP tuners either.
04 Durango harness (made stand alone by me) 545 rfe in a 91 D150. Tired tapping my trans output sensor wires to my Speedo ( electronic) and it worked but bounced 20-30 mph.