Wiring harness differences for eta?

[EtaSport]

e30-e36
pin 1-pin 25 alternator
pin 2 oil level static-(not used on e36) (you can wire the oil level sensor up to this wire)
pin 3x (nothing here)
pin 4-pin 12 coolant temp
pin 5-pin 23 oil pressure (i need to double check this)
pin 6 e30 o2 sensor relay power, goes to nothing
pin 7-pin 21 Starter input (e30 side should have two wires, just tie them both in)
pin 10 dynamic oil level (not used on e36, once again, you can wire this in if you want)
pin 11-pin 19 SI reset function
pin 13-pin 13 Fuel pump relay
pin 15-pin 15 unloader relay
16x
17x not used
pin 18-pin 18 Starter
19x not used

pin 24 on the e36 goes to the red/yellow wire of the c104
pin 14 on the e36 goes to the black wire of the c104
pin 20 of the e36 goes to the wire on the back of the instrument cluster in the circuit board with the green covering that snaps onto the cluster.

beej that last one is the one you are referring to, if you dont hook the speed input wire up you will get a check engine light and limited rpm range (redline at like 6300 or so).

Since the eta has no check engine light, you can hook up a small light with 12 volts and run its ground side through pin 8 of the e36 harness. This will give you a CEL and should even blink with the "stomp" test.

thats all i can think about right now.

[Beej '86 325es]

If you want my pin charts for the eta/m50 i think i still have them sitting around. If you want to retain all of your OBC functions including the code imobilization function you'll have to get further into that with the c104. The only wire you really need is the black wire for tach. There should be another one there for fuel rate, but i would have to double check if its wired there or in my c101.

You will also need to wire in a speed input signal to your DME as the eta doesnt use one, but the i does. If your car has cruise control (even it doesnt work or you have removed the drive unit-i did) you can splice into the speed signal wire on the back of the cluster. Those are the main differences.

Do you know where in the back of the cluster that has to tie in at? I think that's the last wire I have to connect... I just remember hearing something about the green plug on the back...

thnx

[Jand3rson]

If you want my pin charts for the eta/m50 i think i still have them sitting around. If you want to retain all of your OBC functions including the code imobilization function you'll have to get further into that with the c104. The only wire you really need is the black wire for tach. There should be another one there for fuel rate, but i would have to double check if its wired there or in my c101.

You will also need to wire in a speed input signal to your DME as the eta doesnt use one, but the i does. If your car has cruise control (even it doesnt work or you have removed the drive unit-i did) you can splice into the speed signal wire on the back of the cluster. Those are the main differences.

I don't have an OBC anymore, so that's not needed. And my cruise control doesn't work, but I'd like to fix it.

If you could get me those pin charts, that would be awesome! eurospeed88@gmail.com

[EtaSport]

If you want my pin charts for the eta/m50 i think i still have them sitting around. If you want to retain all of your OBC functions including the code imobilization function you'll have to get further into that with the c104. The only wire you really need is the black wire for tach. There should be another one there for fuel rate, but i would have to double check if its wired there or in my c101.

You will also need to wire in a speed input signal to your DME as the eta doesnt use one, but the i does. If your car has cruise control (even it doesnt work or you have removed the drive unit-i did) you can splice into the speed signal wire on the back of the cluster. Those are the main differences.

[Jand3rson]

Anyone else have any info? Ryan, I'm mainly looking for your input here.

[backtrail69]

You have to deal with the c-101 (i think it is) connector with the glove box and the connector in the engine bay vs just the connector in the engine bay on the 88+ cars.

[Jand3rson]

Are there any vast differences between the 325i and 325e wiring harnesses when it comes to making the necessary modifications to the E36 harness? Andrew and I have all of the pinout charts, but I haven't been able to find anything specifically relating to the eta harness.

BTW, the M50 in question in a '92 E36 non-vanos, and the car is an '86 325es.