boldy205 75 Posted December 1, 2007 Help! thought id have my pug running today but am having trouble wiring the rev counter up, anyone don this before on a Megajolt on another aftermarket ignition setup, weber alpha etc? Or maybe its the same as the megasquirt? Thought i had it sussed when i connected the 112 tacho wire to a coil negitive and the tacho read about haly RPM, so built the small Diode circuit and now it works but incorectly. Its a megajolt using TPS on a MI16 twin 45s in a j plate 205 GTI. Thanks for ANY ideas!! Matt. Share this post Link to post Share on other sites