E34 engine harness problem

[PauliusB]

I ran into a problem doing my swap.I changed whole engine harness From E36 to E34.An i cant figure out whats wrong.
I think this wire is - , but on the harness i cant find any other earth wires.And for +, i took wire from E36 harness, whitch goes from battery, to starter and to fuse box, but when i connect everything, there is no power in relays.
Maybe this connection, has something to do with it?
Or maybe this one?Please guys,help me.

[Mr.SWISS]

Bro you got like nearly 5 plugs circled in the pic, but the round one centered is the O2 plug, which will not keep you from cranking/running.

That red wire on the stud needs to go to the battery tray connection. The fuse box also needs not be routed to the starter junction, only wires on there should be the power feed from battery tray and then the alternator main wire goes on top of it then the nut. Fuse box should power from battery tray connections and you need that red wire hooked up if you want the DME to power on brah.

[PauliusB]

Can you draw me a scheme please?I can understant everything because of my poor english

[7pilot]

Top wire circled = Earth for ECU.
No ECU earth = No power.
Bottom plug circled looks like MAF.(You should verify)
Tip:
make a list of plugs with the water boots pulled back and match the wire codes with the diagrams on the ETK which is available on line.
Have you read the stickys at the top of the page?



m

[PauliusB]

Yeasterday i wired fuse box, independedly from starter section, and connected + to those wires on the stud, and connected wire (which is circled in first picture) to earth, but i have power only in one relay(DME main relay), but theres none in other relays.I read stickys, but i havent found useful.I cant figure out what im doing wrong.

[PauliusB]

And what confuses me, is that when you connect wire in the(in first picture)to earth or directly to - on the battery, nothing changes.It doesnt matter if i connect that or dont, i have power in one relay(white).I was thinking but i cant figure whats wrong, but maybe it has something to do with grounds on the engine?Because i cant find anything more to blame.Can you guys tell me how and where you connected your engine grounds?