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Rev counter not working
Posted: Tue Jan 15, 2013 2:27 am
by NickSuzy
Hi All,
I have now installed the M30 into my car and after a few headaches, she is running.
But my revcounter is not working.
I have made the wiring changes as per Lee's post but still nothing.
Am I missing something simple.
Any help is greatly appreciated.
Nick
Re: Rev counter not working
Posted: Tue Jan 15, 2013 12:11 pm
by mcbonio
Was the donor car a 4pot car?
Re: Rev counter not working
Posted: Tue Jan 15, 2013 6:37 pm
by Bristol_Jer
Is everything else working as it should?
Re: Rev counter not working
Posted: Tue Jan 15, 2013 9:08 pm
by walinsky
Do you actually have a revcounter in the first place?
Re: Rev counter not working
Posted: Tue Jan 15, 2013 9:26 pm
by NickSuzy
The car is a 325e so yes a six pot.
The revcounter did work previously with the M20 in it.
Only just installed the M30 and got it running.
Re: Rev counter not working
Posted: Tue Jan 15, 2013 9:41 pm
by walinsky
http://www.armchair.mb.ca/~dave/BMW/e30/e30_86.pdf
Check if there's a 4 pin connector in your glove box (C104).
This connector formerly connected to the engine loom, close to the Motronic unit.
It should have 3 wires:
Pin1 - black (SHIELDED!): engine speed
Pin2 - green: power ECU (non fused)
Pin3 - yellow/white: fuel rate
You'll want to use the black and yellow/white ones - and connect them to the engine loom.
I pulled them back - and fed them through the firewall to the fuse-box. From there I connected them to the correct pins on the (chassis side) engine loom connector.
Re: Rev counter not working
Posted: Tue Jan 15, 2013 10:04 pm
by NickSuzy
I shall have a look tonight, cheers for the advise.
Re: Rev counter not working
Posted: Tue Jan 15, 2013 10:45 pm
by jimbom30cab
Was the donor car a 4pot car?
does this make a difference ? - my donor was a 318i
thanks
Re: Rev counter not working
Posted: Thu Jan 17, 2013 12:47 pm
by mcbonio
Yeah the coding plugs are different on 4 and 6 pot cars IIRC.
Someone chime in and give more accurate details please.!