Hi done one of these a long time ago, you need a distributor (xr3i), coil, loom from coil to distributor & then pick up an ignition feed to supply the coil, have you checked the primary & secondary resistance of the coils?, ive had a load of problems with mine not starting & it turned out to be the ecu, the company i have been using said they have problems with one coil side of the ecu so that may be your problem, secondary resistance is 15,000 ohms, primary 1.6 ohms, megajolt do a bolt on kit with crank pulley sensor, ecu & coils to replace the complete system if your interested but try & put it back to original if you can, i hope this helps