RomRaider

Hey whats up guys!

Just recently swapped my old M52tub25 to an M54b30, kept the MS42 considering its rarity and easy unlock of the ECU. Now Im running into issues where the ecu is detuning the M54b30 since it thinks its still the M52.. I have another M54 to compare power outputs, and its a considerable difference.

Many moons ago, we were able to use Protools for E46 at least from what i remember, now im struggling to find tuning software so i can fix my leaning out problem myself.

I have catless headers, have pink injectors, M50 manifold, using all B30 throttle body components, stuart hi/flo water pump, deleted the SAP. My question here is, has anyone been able to tune a B30 through the MS42?

I need to fix my leaning out problem ASAP, it cuts fuel at full WOT, and you can feel that its not properly adjusting the AFRs to what the B30 requires...

help help pls pls
Allan

Hi
Have you resized the injectors scalar from the old ones to the new pink?
have you changed the maf scale from the m52 to the m54? they are different too

I have a M52TUB28 with a M54B30's intake manifold, and I was able to literally copy and paste the fuel tables from the M54B30 to my ECU (so it can probably be done for timing and vanos as well), but I had to edit the tables' axis first. I don't have my laptop with me now so I'm unable to tell you where exactly you can update the axis, but I know it can be done.

The only question mark for me is how is the MS42 able to handle the M54's electronic throttle body.

hi Allan_Vossen,

is it possible to have informations about your tune ?

i try to help a friend who did the same as you

m54b30 swap
ms42 0110c6
323 throttle body
323 maf
aftermarket headers
auto transmission

the car crank but don't start, can you help me ?

thx