s50b30 wiring help needed

Fri Apr 24, 2009 2:03 am

Hi everyone, anyone got a wiring diagram for the above?? I know i've seen it on here somewhere before but have spent 4 hours searching and can't find it!

Any help would be much appreciated

Fri Apr 24, 2009 11:03 am

There is no definitive diagram for the S50 lumps as far as I am aware..

There is one for the M50's in the M50 development thread

Fri Apr 24, 2009 11:12 am

Thanks jhonno i knew i'd seen a wiring diagram of some sort once, didn't relise it was m50.
Plug on this s50 has way too many wires

Sat Apr 25, 2009 9:22 pm

Anyone know what colour wire does what??
Plug on engine pin numbers as follows

1 -
2 black/red
3 -
4 black/blue
5 black/white
6 purple/white
7 green
8 grey
9 brown/red
10 blue/yellow
11 brown/yellow
12 brown/purple
13 green/purple
14 black/white
15 black/green
16 white/yellow
17 white/purple
18 black/yellow
19 white/green
20 black
21 fat green
22 green/white
23 brown/green
24 white/black
25 blue

Sat Apr 25, 2009 9:53 pm

hot325ix wrote:Anyone know what colour wire does what??
Plug on engine pin numbers as follows

1 -
2 black/red
3 -
4 black/blue
5 black/white
6 purple/white
7 green
8 grey
9 brown/red
10 blue/yellow
11 brown/yellow
12 brown/purple
13 green/purple
14 black/white
15 black/green
16 white/yellow
17 white/purple
18 black/yellow
19 white/green
20 black
21 fat green
22 green/white
23 brown/green
24 white/black
25 blue

1 -
2 black/red - High speed relay to Vanos
3 -
4 black/blue - Air con Compressor control relay
5 black/white -
6 purple/white -
7 green - Start immobilisation relay to ECU
8 grey - Check engine light
9 brown/red - Oil temperature sensor to cluster
10 blue/yellow - Reverse light switch
11 brown/yellow - Coolant temp sensor pin 2
12 brown/purple - Coolant temp sensor pin 1
13 green/purple - Fuel pump / start identification relay
14 black/white - Road speed signal
15 black/green - I am cranking signal from starter
16 white/yellow - Diagnostic connector pin 15
17 white/purple - Diagnostic connector pin 20
18 black/yellow - ignition switch terminal 50 to fuel pump
19 white/green - Diagnostic connector pin 7
20 black - Engine speed
21 fat green - Ignition Switch (live in Run & Start)
22 green/white - Live in Run & Start from ign switch
23 brown/green - Oil pressure switch to cluster
24 white/black - Fuel Rate output
25 blue - Charging voltage (Alternator D+) to cluster

HOPE THIS HELPS YOU OUT, IT CERTAINLY HELPED ME ALOT

Sun Apr 26, 2009 2:14 pm

hot325ix wrote:Thanks jhonno i knew i'd seen a wiring diagram of some sort once, didn't relise it was m50.
Plug on this s50 has way too many wires

Tell me about it!

Still wiring my sodding S50B32 up.

Sun Apr 26, 2009 10:35 pm

SAE30 thanks alot for the info, at last i know what each wire is for... know have to work out how to mate it up to the e30 loom

Cheers mate

Sun Apr 26, 2009 10:36 pm

Jai i read a thread about yours ages ago, assumed yours was all up and running by now!!

Mon Apr 27, 2009 8:45 am

hot325ix wrote:SAE30 thanks alot for the info, at last i know what each wire is for... know have to work out how to mate it up to the e30 loom

Cheers mate

only a pleasure..... do u have e-mail? i have a spreadsheet that explains which wires to mate up to the e30 loom....

Mon Apr 27, 2009 10:24 am

SAE30 pm sent