Hi Everyone: I have a 1986 Lotus Esprit equipped with Bosch K-Jetronic fuel injection and standard distributor setup. We Lotus owners have a saying about the K-Jetronic.... It doesn't throw codes, it throws fits. And the distributor sitting under the throttle bodies has been the source of many an Esprit engine fire. So the goal is to convert this engine to electronic fuel injection, which Lotus actually did in 1989, using the GM 1228708 ECU with the D1927 ignition module running in wasted spark mode. They notched the outside edge of the flywheel and added the crank position sensor there at the back of the engine, I think because the crank pulley at the front of the engine is in a very crowded spot. I have managed over the years to acquire all of the original 1989 OEM intake hardware... intake manifold, throttle bodies, fuel rails, injectors, etc. But I do not have any of the electrical parts... primarily the ECU and wiring harness. The 1228708 ECU looks to be available without much difficulty. If my info is correct it was used on 1990-1991 Oldsmobile Cutlass Supreme, Calais, Buick Skylark, Pontiac Grand Am, and Chevy Beretta.... basically anything GM made with the Quad-4 engine option. The Lotus specific MEMCAL however, looks to be super rare. John Welch at W C Engineering has the last and best BIN files for my Lotus 910 engine, but that still leaves the Lotus specific ESC (knock sensor board) and resistor networks to complete the MEMCAL. So right now I'm looking for information.... a schematic for the ECU 1228708, sources for donor wiring harness and connectors, any information or schematics of the ESC (knock) circuit... not necessarily Lotus specific but great if it is Lotus specific, and any information on the resistor networks and what they do . I look forward to hearing from everyone.... Jeff
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