FAULT CODE

Does anyone know what the fault code mid 130 psid 29 fmi7 is please. Had the gearbox rebuild and the fault is still there the lorry won’t rev and will not select gear.

Regards &thanks

MID130 PSID29 FMI7
Conditions for occurrence of the fault code: the
gear is engaged with the cylinder position sensor showing the neutral position,
Observed symptoms: the
gear shift does not work,
Possible causes:
selector fork, brass fingers

(Personally, first and foremost I’d be suspecting the usual “dodgy sensor”)