Hello everybody, I'm hopeing to get some help from others MB owners from this forum.
My story is:
I bought an old W123("Cobra" how people in my country nicked this car) 220 standard diesel engine. After 1 year of driveing slow i decided that is time to do something so i bought a w210 e300td 97' auto E-classe.
I have the om606 engine for a while now on the car, i tried to fit the auto transmision but had some problems with shifting and ABS problems.
Now i have an 5 speed manual transmision, the car runs quite nice but i need some electrical help: The car starts and runs in a "limp home mode" with no turbo boost only if i connect to the car the gearbox ECU, otherwise if i unplug the gearbox ecu the car does not start.

Does anybody know what i have to do?