TCU TurboLamik

This is not my work it is from Cantcu. But it will likely fix your problems.

"Car needs to be fully coded as an automatic (S205A in VO/FA) and the DME/DDE programmed using automatic transmission software to support torque interventions
CAS: AUSWERTUNG_P_HW → nicht_aktiv
CAS: ABZUGSPERRE_PLOCK_C6 ...

I would start by finding out of the TCU is getting a command or request to downshift in that condition. I have seen faulty paddles do something very similar. But it would upshift randomly.

You should be able to diagnose the paddle shift error yourself. Especially if you made the harness. A simple multimeter will let you confirm you are getting the correct signals in to the Lamik. A ground signal for both down and upshift via seperate inputs.

The error on the dash is probably due to ...

Did you get this fixed? If so could you share what you had set wrong incase someone else encounters the same issue?

I havent done it, but i believe its a fairly easy install. The output flange on the 8hp may be different to yours, but i believe overall length should be the same. You will likely need the rear bracket from a 6hp. There are quite a few e9x n57 to 8hp cars out there.

Obviously the low range completely changes the load on the transmission and requires completely different fill times and pressure for smooth shifts. This means any adaptions the transmission has done goes out the window. Also the final gear ratio change means any adaptations done while in low range ...

Wiring the TPS sensor directly is no problem. However ensure everything is setup correctly.

The most important thing at this stage is making sure the tq value in the tcu is correct.

Hey Rusty,

Make sure you have read the manuall fully it will help you understand your last 2 questions and if thats the case there will be other aspects of the tcu you will learn from the manual.

Reagrding why does your car keep moving when launch is on.

Launch disengaes all clutches, apart ...

I have only set them up using a 5v crank sensor signal, so that 12v may have overloaded the Turbo Lamik.

While it may be ok. There is potencial for that bulb check to have a detrimental effect or potencially effect a shift in the transmission.

I know the e53 chassis doesnt do the bulb check on the centre stop light. Are you able to check if its the same on the e38? Hopefully that doesnt get the bulb ...