RomRaider

Ayy guys! So me and my friend has changed from Ms42 to Ms43(323i to 325i, we did all the wiring, the the electrical throttle pedal, throttle body etc... So, the car is cranking with the original EWS module and key, but we won't get eny fuel from the injectors. I think my bin is a good EWS delete.(i will attach it). We have connected the new EWS module, but it didn't even crank So, tomorrow we'll try to run it with the new "EWS" module, "NEW" key, and the "NEW" Immo ring. Can you guys advice something please?

For "new" EWS you just need transponder from "new" key.
It cranks with "old" EWS because your "old" key is recognised...

Why are doing such a conversion?

It's not my car, i'm just helping him. Thank for the reply, i will try it! He has seen too many vidios that the electric throttle body is mich better. He has a M50 intake manifold aswell.

MS42 means electric throttle body Special one - because it is cable driven but operates just like DBW.
It would be much easier to tune MS42 for small hardware changes than to use a file calibrated for different engine and properly calibrate it.