Well I was wanting to leave the ecm say, 3-4' away from the emulator, where the "prom" would be. The whole point is to do spirited driving with the emulator/LT tied down, yet convient to work with Bruce > One other thing you should look out for. Don't run to long of a cable since the > inductance and capacitance of the cable may affect the operation of the Eprom. > Ron