I really have no idea. When LM's were new cars I was working in a Ferrari/Lamborghini dealer. We became a Lambo dealer for a few years and the entire Lamborghini package for a new dealer consisted of a sign and some patches for the shirts of the mechanics. We never had service training, not a single shop manual or tool. Every warranty claim was a negotiation and in the end to get money required threat of legal action. I had to replace an exhaust emission part on an LM and to get repaid I had to report them to the California ARB and file a complaint of failure to honor emission laws. We had a Countach QV destroy a set of cams in just a few miles and we never got repaid for that. It wasn't too long before we just gave the franchise back. Based on the lack of sophistication of the LIE I suspect Radio Shack supplied it. I would check with them. I have always serviced them based on their method of operation. It is just a poor cross of a Weber Marelli EFI and Bosch D Jetronic using crank sensors instead of trigger points. It is very rudimentary. Sorry I can't be more help.