Author Topic: trying to fit vw rev counter to my gtd mk2 (Read 7706 times)

Jimmy Diesel Junior · « **on:** November 29, 2008, 01:50:21 pm »

Hi all. I have a '91 GTD and i have just fitted a set of rev counter clocks to it. It originally had a speedo and an analogue clock. The rev counter clocks that i fitted were working perfectly in the donor car so i think it's a wiring issue. i reckon that i have to bring a wire from the alternator to somewhere Any help greatly appreciated, Cheers..Shane

Jimmy Diesel Junior · « **Reply #1 on:** November 29, 2008, 01:52:12 pm »

ok been doing a bit of reading on the subject and seemingly i should have a red black wire sticking out of the w-terminal in the alternator. I seem to have a green wire with a male spade on the end of it??? Any ideas??? Cheers..Shane

Jimmy Diesel Junior · « **Reply #2 on:** November 29, 2008, 01:57:20 pm »

Just realised, i'm not 100% sure it's a bosch alternator i have??? Can check tomorrow. Will it make a difference???

Jimmy Diesel Junior · « **Reply #3 on:** November 30, 2008, 01:31:14 am »

Can anyone help me with this installation??? Cheers..Shane

Jimmy Diesel Junior · « **Reply #4 on:** November 30, 2008, 09:59:11 am »

anyone???

zukgod1 · « **Reply #5 on:** December 01, 2008, 08:30:39 am »

Well you don't seem to be getting much help here.

You need to verify you have the "W" terminal on the alternator then you need to get a Bentley and follow the wiring diagram to get it where you need it.

Most of the time the wire is already there you just need to find it.

Jimmy Diesel Junior · « **Reply #6 on:** December 02, 2008, 10:56:07 am »

Thanks for reply. Can i connect directly to the clocks from the w terminal??? Can't find the wire for some reason, this is weird!

zukgod1 · « **Reply #7 on:** December 02, 2008, 11:35:23 am »

Well the wire I'm referring to is in the engine bay, should be part of the Alt harness and if not already plugged into the "W" terminal it should be hanging close by. Red I think.

If you have a Cluster with a Tach in there now and you plug this wire into the alt it will work, the wire is already ran to the cluster from the factory.

Does your alt have the "W" Terminal?

Jimmy Diesel Junior · « **Reply #8 on:** December 02, 2008, 11:32:49 pm »

Hello and thanks for reply. I think it has the w-terminal ok. It has a green wire coming from the alternator with a male spade on it??? So i guess it's a case of trying to trace that taco wire and take it from there?? Cheers Shane

zukgod1 · « **Reply #9 on:** December 03, 2008, 07:50:49 am »

Yes exactly, that wire "should" be already ran to the cab and in the plug attached to the cluster.

Jimmy Diesel Junior · « **Reply #10 on:** December 03, 2008, 11:49:48 pm »

Thanks will look tonight and keep you posted cheers..Shane

Jimmy Diesel Junior · « **Reply #11 on:** December 27, 2008, 07:29:16 am »

Hi all. Wire was not there. Had to run wire from w terminal to plug g1 pin 12 and worked first time cheers for all the help..Shane

Smokey Eddy · « **Reply #12 on:** December 28, 2008, 02:20:32 am »

Do these GTD rev counter dash sets use a micro controller? How do they work?
if anyone has detailed info i'd love a pm