E30 Zone

Rev counter still not working. Im not sure why

I have done the swap on the wires, The heaters work fine. The speedo works fine, SI batteries both show 3v.

But the rev counter and eco-swing meter does not work. I checked all the connections, everything seems fine. So stumped at the moment.

Anyone got any ideas?

Is this on an M30 converted car?

Do the temp and fuel gauge work as normal?

Yeah they work fine, so it must be the wiring i think

A little update.

I checked the batteries on the SI board they both read at 3v so no problems there.

The speedo was not working due to a loose connection. So thats sorted now. I love the way when changing from 1st - 2nd the speedo bounces when you loose traction. Also, good to see how fast Im going finally.

However the Rev counter is still not working, I have been searching on this forum and others it seems like a few people have had trouble with getting them working. But cannot find a solution anywhere. Got some details about running a wire to the c103 connection but nothing certain anywhere.
What the trick to getting the rev counter working?

Anyone?
Should this have worked when I swapped the wires over or does something else need to be done?

Early e30 models have a (3-wire) C104 connector that sends tacho (pin 1) and economy (pin 3) signals to the instrument cluster.
http://forums.eurocca.net/showthread.ph ... post559881

its not a early model. I have now got used to it. Might get a dash mounted counter, but they look a bit tacky or just leave it