is it a msd wasted spark kit? if so theres someone on here from msd who might be able to help if he sees this, your rev counter is fed from a different pin on your ecu now if its the msd kit which should be in your instructions, ive also got this fitted and having a massive amount of problems with it, this weekend is the last time im messing about trying to get it to work and then ill be ripping the whole lot out, have you set your plug gaps to what msd recommend? so far ive only managed to get mine firing on cylinders 2 and 3 for all of a minute, im not having alot of luck with this kit either and its going to cost me too much to bring my car all the way to blackpool for msd to sort out