Rev counter not working with 2e conversion

hi all,
could anyone shed any light on my problem with wiring from a mk3 2e to my mk1? have got literally everything working except the rev counter which doesnt wanna play ball. stumped!

Phill

Take a wire directly from pin 1 of the coil (blue wire I think from memory, the one on top of the coil not the 3 pin plug to the coil unit) and run it into the red/black wire that runs to the dash binnacle from pin B19 on the fusebox.

Im having problems with this i was told i need to send my ECU back to qpeng for a tacho box.

Im using an 02A box

or just buy a set of cheap clocks without a rev counter use the pin out on the ecu to a aftermarket rev counter pod mounted on the dash

mine doesnt work but thats purely cos im a flid and i broke it lol

I want my one to work as my pan was to get the car as standard as possible inside and out so a purist coul dnot tell what is was really until the key was turned.

mr purple, that doesn't really make sense as i only have the 3 pin plug on coil and the coil lead to dizzy. are you thinking of something else??

i take it you have the later style coil thats all in one then, try green/blue wire from ecu connected to red/black to dash, seems to work sometimes and othertimes doesn't for some reason, one of the many things i need to look at in more depth by checking the signal with a oscilloscope.

Bit of a thread resurrect, mrpurple how did you go about getting your rev counter working on your 20v? I have got my loom converted, and have the tacho and ecu wires ready to connect up to a jabbasport converter box, but is there another way using resistors or similar? There is a bit of info out there for mk2's, but a lot less for mk1's! As bigadd said above, im trying to keep mine as close to standard inside as possible and keep everything looking factory

the mk3 rev counter signal comes from ecu, and this doesnt work with mk1/2 dash. 2 options:
1. open the flap on the side of the MK3 coil and run your rev counter wire to the -ve terminal under there
2. throw mk3 coil in bin, chop coil plug off.
fit MK2 Golf coil + tci unit, plus the loom from tci to coil. chop dizzy plug off mk2 tci loom, splice green/red wire from old mk3 coil plug to pin 6 on the TCI-h unit. tape up other 2 tci dizzy wires as not needed. plug black wire from old mk3 coil plug to +ve/15 side of coil. run rev counter wire to -ve/1 side of coil. tape up brown wire to mk32 coil plug as not needed.

for 1.8t, try these 2 links:
http://www.clubgti.co.uk/forum/showthread.php?t=214566
http://www.clubgti.co.uk/forum/showthread.php?t=166151