Hey there. first of all, i started this thread in this section because it has to do with the engine harness most of all, so i wasnt sure if do it either in the electrical (stereo) section or engine swap (heavy duty stuff) section. So, i think is more general technical topic.. anyhow..
Ive been going through a lot of diagrams, my head is seriously about to explode. i have a 1975 530i and i did an m20b27 "i" head engine swap in it. i have the Motronic 1.3 (325i, 325is, 325ix) later model 173 bosch 0 261 200 380 ECU.
What im really trying to attemp is to tap the engine harness (e30) with the original (e12) harness.
So far ive tapped or connect the following
Start wire from ignition switch (black yellow e12)
start/run wire from ignition switch (green e12)
alternator (blue e12)
fuel pump (green/violet e12)
temp sensor (brown/white e12)
When i go to give it switch nothing really happens, i just hear a relay click in the power/relay/fuse box.
I guess my question is what is the very very basic that i need to connect to on the motronic (e30) harness so it can run/drive. I really dont need anything else than just being able to drive, the very basic.
Im not really that knowledgeable when it comes to wires and ecus, but im really trying here. I already went through the e30 harness diagrams, so is not that i havnt seen them, and the e12 diagrams are very very hard to find, a guy wanted to sell me a manual in german and wanted $150... hmmm no thanks..
Thanks in advance and hope to get a couple of pointers. Anything will help. :-?
Ive been going through a lot of diagrams, my head is seriously about to explode. i have a 1975 530i and i did an m20b27 "i" head engine swap in it. i have the Motronic 1.3 (325i, 325is, 325ix) later model 173 bosch 0 261 200 380 ECU.
What im really trying to attemp is to tap the engine harness (e30) with the original (e12) harness.
So far ive tapped or connect the following
Start wire from ignition switch (black yellow e12)
start/run wire from ignition switch (green e12)
alternator (blue e12)
fuel pump (green/violet e12)
temp sensor (brown/white e12)
When i go to give it switch nothing really happens, i just hear a relay click in the power/relay/fuse box.
I guess my question is what is the very very basic that i need to connect to on the motronic (e30) harness so it can run/drive. I really dont need anything else than just being able to drive, the very basic.
Im not really that knowledgeable when it comes to wires and ecus, but im really trying here. I already went through the e30 harness diagrams, so is not that i havnt seen them, and the e12 diagrams are very very hard to find, a guy wanted to sell me a manual in german and wanted $150... hmmm no thanks..
Thanks in advance and hope to get a couple of pointers. Anything will help. :-?
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