152 = Motronic M1.1 = 2 x platine = ?? pin eprom
172 = Motronic M1.3 = 1 x platine = 28 pin eprom
381 = Motronic M1.3 = 1 x platine = 28 pin eprom
All three have 55 pin connector and are interchangeable. 381 can store more fault codes than 172. The newer (= higher number) are better and more reliable.
172 = Motronic M1.3 = 1 x platine = 28 pin eprom
381 = Motronic M1.3 = 1 x platine = 28 pin eprom
All three have 55 pin connector and are interchangeable. 381 can store more fault codes than 172. The newer (= higher number) are better and more reliable.