And another M30 swap begins

[E30 Beast]

You don't need to do anything with that plug...ignore it.

Pin outs have been posted here many times....you do want to look at the ETM for YOUR specific model / year though.

have a noob ? wut does ETM stand for?

[Jean]

Look at the post above yours (post 135) :)

[E30 Beast]

Look at the post above yours (post 135) :)

lol thanks jean

have another question for u guys, wut do i need to do with my 25 pin c101 harness to make it work on the e30 nd which end of the c101 plug do i need to cut off to make a male/female instead of female/female, hope that is understandable

[E30 Beast]

anyone care to elaborate on the post above

[Jean]

anyone care to elaborate on the post above

Option one is to make an adapter to go from your 25pin to 20pin (made a few of these for other guys) since the original harness I had was also a 25pin.

Option two is two cut off the 25pin and splice a 20pin in it's place. To do either option if you choose to do it yourself you need to look at the ETM for the year/model this engine
came out so you can trace all the needed wires by their functions. Do not go simply by colors, sometimes they match up and sometimes they don't...so it's best to go by the actual functions of each wire and match them up.

I would not touch or cut off the chassis side plug, leave that one alone :)

[E30 Beast]

Option one is to make an adapter to go from your 25pin to 20pin (made a few of these for other guys) since the original harness I had was also a 25pin.

Option two is two cut off the 25pin and splice a 20pin in it's place. To do either option if you choose to do it yourself you need to look at the ETM for the year/model this engine
came out so you can trace all the needed wires by their functions. Do not go simply by colors, sometimes they match up and sometimes they don't...so it's best to go by the actual functions of each wire and match them up.

I would not touch or cut off the chassis side plug, leave that one alone :)

thanks for all the helpful information Jean will just use the plug off my m20 harness will start searching for my pinouts nd go from there

[E30 Beast]

okay im lost ive been trying to figure out jeans diagram for the c101 plug but everytime i look up the the plug from the e30 the wires on the diagram dont match up to the wires on my car, plz help!!!!

[E30 Beast]

can anyone help me with this?

[E30 Beast]

any1?

[LowR3V'in]

This one? or are you looking for the ecu pinout?

http://r3vlimited.com/board/showthread.php?t=146298

[E30 Beast]

This one? or are you looking for the ecu pinout?
http://r3vlimited.com/board/showthread.php?t=146298

yea that's what i was lookin for just had a hard time understanding which pin went were

[E30 Beast]

okay this is what i have so far as far as the c101 plug goes.

E30 Side

1. Blue = Alternator
2. Blue/Yellow = Oil Sensor
3. ?
4. Brown/violet = Coolant Temperature Sensor
5. Black/brown = Oil Pressure
6. Green/Yellow = o2 Sensor
7. Green = Ignition
8. ?
9. ?
10. Violet/green = Oil sensor
11. Blue/white = Diag connector
12. Brown/black = Check engine light control
13. Violet/red = Fuel pump
14. ?
15. ?
16. White/black = SRS connector
17. ?
18. Black/yellow = Starter
19. ?
20. Brown = ?

What else needs to be to be wired up to the c101 plug for my car to run and is pin #20 a ground nd were does it go to.
I really need u guys help on this one

[E30 Beast]

any ideas?

[sacse30]

This is all that i've been able to find.

http://www.e30tech.com/forum/showpost.php?p=454677&postcount=21

and this...

http://www.rickk.net/i/drive/bmw-e30-325i-motronic-10-information/

[Jean]

Start matching up the wires, all the info is in front of you or confirm it all by looking through an ETM for your CAR and the Engine.. You'll have to go page by page and look for any/all mention of c101/x20 on the diagrams and take notes. This isn't very difficult, try it and actually learn what goes where and why :)

If you don't want to do this source an automatic or manual b35 harness from an earlier e34/e32 car.