So my brother is swapping a b35 from a 94 e34 into his 86 e30 eta and is in way over his head with wiring.
I am trying to help him, but im having one helluva time finding correct pinouts for anything.
I have a 79 MB 300sd with a manual injector pump and of course no spark plugs because diesel (yay simplicity)
Swapped in a 4 speed manual and put a bigger turbo on it that I rebuilt myself, so I can turn a wrench, as can my brother.
I used to be a computer/cell phone repair technician and I build drones for fun, so im no slouch with electrical work either.
Both cars were/are manual transmissions. The neutral safety switch was bypassed on the e30, so at least I dont have to worry about that lol.
We have both sides (male and female) of the round x20/c101 (I believe that is the correct name) and whole harness from the e34 b35,
and we have the chassis/female side of the e30 eta round x20/c101 that we're trying to adapt it to. Have the dme from the e34 as well.
Motors in the car, just need to get a driveshaft connected and get the wiring sorted out and it'll be good to go.
I have searched high and low for the correct pinouts and I cant find anything that matches whats actually in the car unfortunately.
I have tried doing a continuity check from the e30 chassis side c101 to the fuse box, but I was only able to get a few hits and the readings I got
were suspect and made me skeptical.
I have mapped out the e30 chassis side plug as follows
pin 1: blue
pin 2: blue/yellow
pin 3: unused
pin 4: brown/purple
pin 5: brown/black
pin 6: green/yellow (heavier guage wire)
pin 7: green
pin 8: unused
pin 9: unused
pin 10: violet/red
pin 11: white/blue
pin 12: unused
pin 13: violet/red
pin 14: unused
pin 15: unused
pin 16: white/black
pin 17: empty
pin 18: black/yellow (heavier guage wire)
pin 19: unused
pin 20: unused
I'm dumb, and left the b35 side plug at the storage unit with the car and didnt map it out yet, I can do that tomorrow.
If there's anyone out there that can help with this, I'd dance a jig and be super appreciative. My brother even moreso than myself.
Contrarily, I'm not afraid to set up new relays with toggle switches for the fuel pump, main relay and ignition relay. Starter confirmed to function correctly.
As far as I understand it, the dme only really needs power, afm, o2, the crank position and control over the idle control valve? Or am I completely off base there?
I know the spark is distributed mechanically, so its just a matter timing spark and controlling the injectors and idle?
If there's anyone that can point me in the right direction for pinouts or adapting this damn thing to manually operated
relays, I would seriously be grateful. I can provide any additional information if it helps the process.
I am trying to help him, but im having one helluva time finding correct pinouts for anything.
I have a 79 MB 300sd with a manual injector pump and of course no spark plugs because diesel (yay simplicity)
Swapped in a 4 speed manual and put a bigger turbo on it that I rebuilt myself, so I can turn a wrench, as can my brother.
I used to be a computer/cell phone repair technician and I build drones for fun, so im no slouch with electrical work either.
Both cars were/are manual transmissions. The neutral safety switch was bypassed on the e30, so at least I dont have to worry about that lol.
We have both sides (male and female) of the round x20/c101 (I believe that is the correct name) and whole harness from the e34 b35,
and we have the chassis/female side of the e30 eta round x20/c101 that we're trying to adapt it to. Have the dme from the e34 as well.
Motors in the car, just need to get a driveshaft connected and get the wiring sorted out and it'll be good to go.
I have searched high and low for the correct pinouts and I cant find anything that matches whats actually in the car unfortunately.
I have tried doing a continuity check from the e30 chassis side c101 to the fuse box, but I was only able to get a few hits and the readings I got
were suspect and made me skeptical.
I have mapped out the e30 chassis side plug as follows
pin 1: blue
pin 2: blue/yellow
pin 3: unused
pin 4: brown/purple
pin 5: brown/black
pin 6: green/yellow (heavier guage wire)
pin 7: green
pin 8: unused
pin 9: unused
pin 10: violet/red
pin 11: white/blue
pin 12: unused
pin 13: violet/red
pin 14: unused
pin 15: unused
pin 16: white/black
pin 17: empty
pin 18: black/yellow (heavier guage wire)
pin 19: unused
pin 20: unused
I'm dumb, and left the b35 side plug at the storage unit with the car and didnt map it out yet, I can do that tomorrow.
If there's anyone out there that can help with this, I'd dance a jig and be super appreciative. My brother even moreso than myself.
Contrarily, I'm not afraid to set up new relays with toggle switches for the fuel pump, main relay and ignition relay. Starter confirmed to function correctly.
As far as I understand it, the dme only really needs power, afm, o2, the crank position and control over the idle control valve? Or am I completely off base there?
I know the spark is distributed mechanically, so its just a matter timing spark and controlling the injectors and idle?
If there's anyone that can point me in the right direction for pinouts or adapting this damn thing to manually operated
relays, I would seriously be grateful. I can provide any additional information if it helps the process.
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