Rev counter doesnt err, work :/
Turbo Mini Forums

Hello guys. Just bought home a 3-clock pod and fitted it, my mate said the connectors for the back of the rev counter should be swimming about the steering column. Sure enough i found the female bullet and spade connectors even though my car didnt come with a rev counter as standard!

Ive connect these to the back of the guage but it doesnt work! No revs indicated at all! Can anyone help? Where does the rev counter connect to? I assum the coil and somewhere else but dont know about the actuall connections, help would be wiked!

Rich :)

if it like most rev counters you should have a live, and an earth, red live, black earth, then you should have a green wire this goes to the - terminal on the coil and it should work then

Edited by nogin on 16th Jan, 2006.

"Can I legally marry people now that I am ordained in the Church of the SubGenius?" aka i know jack sh"t

i also make things

i love coming home to chrome

No wrong. There should be a spade terminal with +12V ignition switch controlled feed. There should then be a white/black wire with a bullet on it that connects to the negative side of the igntion coil to pick up the pulses that drive the rev counter.

Check that you have 12V first off, then if that fails test continuity of the other wire back to the coil.

yeah but surely if he's fitting the std rev counter, as the wiring loom is already there then it will just plug in and work?

i think its just the 2 terminals on the std one?

Yeah theres nothin like earths or live feeds coming from the back of the pod, just those two connectors. The wires are the same colours as Tom described. My buddy said he plugged his in and it just worked! I guess they used the same loom making my 93 1275 non cooper as they did in the coopers with counters fitted as standard so the connections are all there. Ill take a pic of my coil later and see if i or you guys could help! Thanks chaps,

Rich

As Tom says check the 12V supply, if that's there then an easy test is to connect a wire from the -ve of the coil to the bullet connector on the revcounter (take the wire out of the bonnet and through the window sort of thing). If the revcounter works then the wires knackered in the loom.

If it dosen't then I'd take it back to your mates an see it working.

Wil

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

if you open the bonnet look at the ign coil the w/black wire is they two or one on the -ve of coil if one it is not wired in for a rev counter but look at the plug you put in the rev counter and see if you can see the w/b wire in the plug if so go back to the coil and look for the wire

1293 Turbo mini

Just had a quick mooch and there is two black and white wires connecting to the spades on the coil. So i spose they are all connected up

Continuity check from coil to wire behind dashboard............

ok are you on points or electronic ignition system

and is the w/b wire at the dash end for the rev counter

Edited by jimmy on 17th Jan, 2006.

1293 Turbo mini

If the ign live is ok, the rev counter needle should jump a little bit when the ign is turned on and off.regardless of whether the coil is connected

Metro turbo weekend driver,Mini turbo in the making again!

not all ways normally it is the electric ones
that jump

the wire colours are
light green/orange ign live
black earth
w/black -ve tigger (coil)
the lg/o power comes from fuse 3 from the fuse box
25 amp fuse

Edited by jimmy on 18th Jan, 2006.

1293 Turbo mini

Have just done a continuity test on the black/white wire from the coil to the bullet connector attatched to the counter and it doesnt seem to be getting any feed

That is your problem then. make sure you have done it right, there should not be a "feed" there, the feed is the +12V which should be on the wire with a spade terminal on, when measured to a good earth. The other wire should be connected to the negative coil to give a pulsed signal to the rev counter.

As a quick test, connect a wire from the negative coil to the bullet on the back of the rev counter. Assuming you have +12V to the other connection, with the engine running your rev counter should work.

Edited by Tom Fenton on 18th Jan, 2006.

Just tried it by using a wire from coil to bullet and that didnt work :/

You still haven't told us if you have established there is definately +12V at the other wire???

Sorry Tom, no it doesnt seem to have a feed on the orange/green wire. I did it from the fuse box to the end of the spade and nothing!

What did you check for?

You need to set your meter to DC Volts. Then push one of the test leads into the end of this wire with the spade on. Then push the other test lead to a clean earth on the bodywork somewhere. This measures the potential difference between the wire, and earth. If all is well you should see a difference of around 12 volts. Measuring from the fuse box to the wire will not work, as they are (hopefully) both at 12 volts. Therefore there is no DIFFERENCE between them.

To continuity test between the signal wire with the bullet on, and the coil, first turn ign off. Then set your meter to resistance (OHMS). This will basically check whether or not the wire is connected from one end to the other. Then place a test lead at the coil negative, and the other at the rev counter end. You should see a LOW reading. If you seperate the wires, your meter will either show a HIGH (infinite) reading, or if a digital meter, often 1 _ _ _ (e.g. 1 and three gaps). This shows there is no connection between the test leads. You have therefore tested for a connection from the coil negative side, and the wire under the dash.

After all this typing from me, I think you had best use the button at the bottom of the page, don't you..............

:cool: :cool: :cool:

if you use a two wire lamp 21w
put one wire on l/green/orange
one on the w/black wire from coil
run engine the lamp will flash with engine running

1293 Turbo mini