No Nuts Posted August 3, 2002 Share Posted August 3, 2002 Easy thought I, it comes with instructions doesn't it? Er, well I've still got questions to ask! I'm running Rover K EU3 (distributorless wasted spark) still with MEMS but will go to Emerald in due course. Has anyone else out there fitted one to such a set up? There is an option to connect the "signal" (green) wire on the shift light to an "Alpha Engine Management system tachometer output". Is this exactly what it means or could I connect it to any EMS tacho output? I mean, surely you don't have to use a particular type of tacho if you run an Alpha EMS? This would be easier as it means I can keep all of the wiring in the cockpit. Is this feasible or am I going to have to take off from one of the coil feeds? I don't want to blow the thing up! TIA Guy NN 😳 Lotus @ Herts Link to comment Share on other sites More sharing options...
Jason Plato Posted August 3, 2002 Share Posted August 3, 2002 I now have mine connected directly to the wires that go to the back of the rev counter . Dave Link to comment Share on other sites More sharing options...
No Nuts Posted August 3, 2002 Author Share Posted August 3, 2002 Thanks Dave. I assume you are not running Weber Alpha ECU or anything? I couldn't see any reason why I shouldn't be able to do this but... So when you set the jumpers inside did you set them to the Weber Alpha tacho settings or just leave them as standard? NN 😳 Lotus @ Herts Edited by - No Nuts on 3 Aug 2002 21:09:08 Link to comment Share on other sites More sharing options...
Jason Plato Posted August 4, 2002 Share Posted August 4, 2002 I'm running an Emerald on dizzyless , my tacho is driven from the ecu though . Your tacho regardless of from where it recieves its signal should still have the 3 wires on the rear : earth , +ve and signal , for the shift light . I was confused by this too , untll Rob explained to me . I dont know what you mean by the "jumpers inside " , the 1/2 setting inside the shift ligt box is used to set the shift light illumination using 1/2 revs i.e shift lights at actual 9600 = 4800rpm whn setting up . You shouldnt have to wear a jumper this timeof year anyway - and you certainly wouldnt fit it inside unless my wife had washed it Dave Link to comment Share on other sites More sharing options...
No Nuts Posted August 5, 2002 Author Share Posted August 5, 2002 Ah Ha! Thought so. The jumpers can be used to set whether you are connecting to a tacho output from Alpha ECU or not. I'll leave them as standard and give it a go. The tacho connections make sense. Thanks again! NN 😳 Lotus @ Herts Link to comment Share on other sites More sharing options...
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