Hey there, i am owning 325e '86 with motronic 1.0 (0 200 261 027) and i am going for a 1.3 (0 200 261 173) conversion. As i know 1.0 plug has 35 pin, and 1.3 has 55, so difference by 20 pins. 1.3 Loom have more wires and when i will put it to 325e where should i connect those free wires ? Just leave it hanging/cut those extra wires ?
And im wondering what chip will i have to use on my 325e with 325i ECU... Will it work with 325i chip ? Or should i make 28pin chip with old 325e .bin file ?
Thank you guys for any answers
