A seemingly off-topic question, but necessary to understand which fits what:
What are the basic differences between ECUs/computers of M103 and M104 engines? This including, but not limited to, which kind of sensors each of them uses, how do they interact with sensors and from them to the mechanical devices.
As I've understood, both M103 and M104 E30 use a Bosch KE-Jetronic system, while M104 E32(fitted in the E320 model) and the V8 M119 model(400E model) have a Bosch LH-Jetronic system with "hot-wire air-mass sensor". From this on, I beg the specialists to elaborate... at least on the basics
~Thank you
Nautilus