F430 Gearbox models might be really different

hi,
its a 2007 f430 with a CFC231 TCU,
this is the story car came for a F1 inspection and a Clutch replacement, we have done more than 15 in the past years, for f430 , however this car is a real challenge.

post checkup
clutch wear was 100%
slipping during TO, full clutch bite at 2500 rpm
slipping during hard driving
amber slowdown light comes on intermediately and goes away
Gearbox warning illuminates sometimes comes on for a few seconds
F1 pump cycles every 30 seconds
F1 pump priming time 15 seconds
Accumulator pressure 52 Bar

this is a typical case of a failed F1 hydraulic system and a bad clutch....

what was done:
New F1 pump
Full Power unit overhauling
Full actuator overhauling
new Accumulator
new clutch
new bearing
new sensor
new magnet for the sensor

F1 hydraulic system passed all tests pump cycles every 4 Min
Pump primes in 3 seconds
Accumulator pressure 52 Bar

now the interesting part:
after self learning and the all the other steps for a clutch change the car will not shift into gear.
the engine will start as if all is good, the parameters were set as following and the same as what was before

auto calibrated CCP 19.3 (cant change this)
Pis 4.1
new clutch wear 2%

the bearing is observed though the clutch sensor little opening on the gear box and the bearing is moving when selecting a gear, but no gear is selected at the fork.
when changing the PIS to a whopping 10 the gear will shift but since that value is crazy high the TCU will not store it meaning that once u switch off the ignition the value will return to the max (5.1mm)

when checking the EVF current it goes to 3.5V at pis 5mm and 3.8 at 10mm pis
(all solenoids were checked passes the tests) EVF was also swapped with a new one

when looking more into the matter the gear box S/N number is in the 9xxxx series which to my knowledge is for the newer f430 2008+ with the cfc301

The owner doesn't know if it was replaced or not as he has just bought the car for a great bargain...

my question is since the deference seems to be that the clutch and bearing configuration is slightly ~5mm or so off could the new Gearbox have a slightly modified geometry and a ECU to match it?

if u look into the parts diagram theirs a crazy amount of TCU variation for the F430 and its limited to the Gearbox and assembly number ranges.

I dont have a CFC301 on hand to test.

 

no air in the system, thats for sure.
I hate it when I take the wrong direction....
you're right with the wiring harness I thought it was to do with the instrument cluster Digitec and the new one what ever its called.

just got feedback with the Transmission S/N from the Ferrari Dealer its the correct one for the car.
installed the TCU to the another f430 and same problem so it seems to be the TCU is acting up...very interesting

Ill need a CFC231 Euro TCU... would the US version work? I understand might lose the LC option anything else...

there was a way bosch BMW and Audi ECUs can be returned to virgin state anyone heard of a away to do it with Magnet Marrelli?