pee vee 1 Posted July 5, 2008 Got my car up and running on Emerald fine.. Spent the £38 on the tacho driver to make the rev counter work again... which it did! for about 40 mins.... now totally dead. checked the wires for it all.. the wiring from ecu is obviously all brand new.. rev counter is now dead.... anyone else had any troubles with emerald tacho driver going wrong? Share this post Link to post Share on other sites
Bonzai 2 Posted July 5, 2008 i had Mikey G build me one for a fraction of the cost (sorry!) Share this post Link to post Share on other sites
pee vee 1 Posted July 5, 2008 yeah after seeing what arrived in the post. i wish i'd just got a couple of diodes from maplin and taken feeds off the coil pack to drive it lol.. bloody cars. any ideas how yours is done mate? Share this post Link to post Share on other sites
Daz_C 8 1 Cars Posted July 5, 2008 I'm having trouble with mine too Although it may possibly be the rev counter, my rev counter under reads by a fair few thousand revs at the top. Dave noticed on the rollers and as I was running my engine in before then I thought it was good of me to keep it at low revs At around 6500rpm on the laptop my rev counter read 4000ish Not had chance to try another rev counter as of yet and the driver was second hand so I can't say where the issue is yet. Maybe someone on here will offer to make my Rev Counter work without using a tacho driver ? Graham where are you ??? Pee Vee - Have you turned the driver on in the Emerald software ? Share this post Link to post Share on other sites
pee vee 1 Posted July 5, 2008 I'm having trouble with mine too Although it may possibly be the rev counter, my rev counter under reads by a fair few thousand revs at the top. Dave noticed on the rollers and as I was running my engine in before then I thought it was good of me to keep it at low revs At around 6500rpm on the laptop my rev counter read 4000ish Not had chance to try another rev counter as of yet and the driver was second hand so I can't say where the issue is yet. Maybe someone on here will offer to make my Rev Counter work without using a tacho driver ? Graham where are you ??? Pee Vee - Have you turned the driver on in the Emerald software ? Hi mate. yeah the driver is on.. the rev counter was working fine.. and as i was going along the road this morning, it simply died! now, nothing! checked all connections and it all seems fine.. 12v switched live is ok.. earth is ok,. pin 12 on ecu is connected fine.. bit annoying really. might have a better look tomorrow if i can.. but cant see that the cars rev counter would suddenly stop working?? Share this post Link to post Share on other sites
Daz_C 8 1 Cars Posted July 5, 2008 Hi mate. yeah the driver is on.. the rev counter was working fine.. and as i was going along the road this morning, it simply died! Sorry mate didn't read your post properly Yeah odd one that. i may have a look at mine tomorrow aswell....................................... but I doubt it Share this post Link to post Share on other sites
pee vee 1 Posted July 5, 2008 righty, just been out and done some more digging about i have 6.3 (ish) volts at the wire feeding the rev counter, when the engine is running at idle... so it shows that the tacho driver is doing something.. but what should i be seeing? i'm assuming this is right, meaning my rev counter has suddenly died? i always thought the rev counters worked off an earth too :S lol any ideas guys? thanks again Share this post Link to post Share on other sites
pug_ham 244 3 Cars Posted July 7, 2008 As standard the rev counter works off a positive (possibly 12 as its direct from the fusebox), earth & signal. It isn't something simple like fuse #1 has blown which controls the rev counter & a few other dash lights iirc. Graham. Share this post Link to post Share on other sites
pee vee 1 Posted July 8, 2008 sadly not checked the fuses in the glove box.. all are ok, there aint any other fuses about that it could be are there :S Share this post Link to post Share on other sites
pug_ham 244 3 Cars Posted July 8, 2008 No, thats the only fuse that covers the rev counter afaik. Its not just a broken / loose connection on the conversion box is it? Graham. Share this post Link to post Share on other sites
pee vee 1 Posted July 20, 2008 tried another set of clocks today... rev counter didnt work on that either. so i made a circuit from one side of the coil pack to the rev counter feed, and the rev counter does work, but reads 1/2 speed. (give or take a bit lol) so I can only assume that it is the tacho driver that is at fault. ? will send it back and see what they say. Share this post Link to post Share on other sites
saveloy 8 Posted July 26, 2008 the first one I had died. The 2nd and current one played about a bit - it stopped working briefly. But it's been fine now for years. Share this post Link to post Share on other sites
James_R 3 Posted August 1, 2008 Why not just buy a accurate undamped "race" tacho?? and fit in the dash, would save the whole hassle, and actually read the right revs unlike std ones which are a bit of a gamble, and actually keep up with the revs when you go through the gears, had one in my nova after the new engine rev'd passed where the std one would read, found it was about 500rpm high by 7k (actually 6.5k) since then always been a must do on any trackcar of mine Like this(ingore the speedo bit, the rev gauge 80mm just fits in looks pretty tidy; Share this post Link to post Share on other sites
saveloy 8 Posted August 3, 2008 James, I'm sorry mate, and I know I risk upsetting you, but that's bloody orrible man. Share this post Link to post Share on other sites
James_R 3 Posted August 4, 2008 It's cool, open to that, if you ignore the speedo/oil pressure bit just the tacho with the normal speedo looks fairly OE. I agree the rest looks a tad heaf robinson, but it's damn effective, I'll eventually bring the car to the peasoup meet and you can have a gander, least I can hit you when you're mean Share this post Link to post Share on other sites
saveloy 8 Posted August 4, 2008 Hey, I look forward to your appearance. As a token of my apeasement, if I puke on your dash I'll happily clean it up for you. Share this post Link to post Share on other sites
James_R 3 Posted August 6, 2008 I'd rather you aimed out the window though, don't like the idea of it cooking on the exhaust tunnel Or starve yourself the day before Share this post Link to post Share on other sites
pee vee 1 Posted August 7, 2008 it may very well end up going the same way as yours mate! Share this post Link to post Share on other sites
pee vee 1 Posted August 16, 2008 Sent the driver back to Emerald, and they said that it had failed. so replaced it on warrenty, no questions asked. new one arrived and is wired in and appears to work fine at the mo! so yea. they can and do fail. Karl@emerald sent an e-mail saying that if it happens again then it could well be a fault with the car, but its all wired as to their instructions, so cant see that it is.. just hope this one lasts !! Share this post Link to post Share on other sites
Bas 6 1 Cars Posted August 16, 2008 The Citroen BX TZi Tacho works fine on a standard Gti 6/205 1.9 loom! Don't know if it works with emerald.. Share this post Link to post Share on other sites
