Hi, I have taken over the build of an Autotune Aristocat (XK120 style kitcar). I have a rolling chassis, ECU and processer unit and wiring loom all from a 93 XJ40. I hope to complete the build using XJ40 but have a question on using a security module. Can I just not fit one, will the ECU still allow the engine to fire up? Is there a work around?