C101 Pin out 1988 E32 735i M30B35

[drift]

Complete Engine, DME & all wiring of E32 735i Auto.
Currently running , but not smooth at all on '87 325e 5 speed.

Anyone got pic or diagram of E32 735i 20 pin C101 ( Which wire= does what?)
I got the car side ( '87 325e) , just need to know the engine side.

Tachometer & temperature gauges are Not working.

[Jean]

Have you searched at all?

http://www.r3vlimited.com/board/showpost.php?p=1465229&postcount=72

[drift]

I did follow that diagram before i post the question, but still no tach and temp.
( i think E28 has rectangular c101, instead of the round one of e30 1986 and later))

[Jean]

You want the e34 pin outs yes? That's what the chart shows :)

Otherwise you'll have to look through the electrical manuals... does your M30 harness have a 20 or 25 pin X20 plug?

[drift]

Thanks for your quick replies!

X20 = the biggest round plug ? If so, i gotta look again to confirm either 20 or 25 pin.
AAMOF, on both C101 i only swapped '88 E32 @ pin 12 ---> '87 E30 @ pin 4 (coolant temp).
I wonder if i have to swapped all the wires on C101 ? just to get the Coolant Temp functions ?

[RickSloan]

is the tach on the 87 e cars the black wire by the ECU? thats all i had to splice to get mine to function finally