CM870 731 code

[lstrucking]

Fresh overhaul on a core engine with a deleted and tuned ecm. Have set the timing to 6/6 as the ESN suggests and have this speed sensor #2 misalignment code that I cannot figure out. Have swapped sensors around checked wiring and tone wheel on crank and even pulled the gears and re timed the cams. Looking for any advice on where to look next