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Hello all, I have a US model 1987 505 GLS. I am strongly considering upgrading the Bosch LU2 ECU to MSII. I know that people have done this to the 505, and I love the prospect of being able to control ignition, fuel and timing via external tuning software. I am trying to develop an idea of the scope of this project and the requirements that I will need to fulfill to get a properly tuned and working system. I am looking for a general guide on a few things: Of all the sensors in the Bosch LU2 system, which are good ones to replace with more modern versions? I know I will be removing that old Air Flow Sensor and replacing it with a MAP sensor, which apparently is more more effective. I can't seem to find online what distributors the 505 2.2L ZDJL uses, but was wondering if the Bosch 0 227 100 124 guide on MSII website would be applicable to the 505 http://www.megamanual.com/ms2/Bosch_124.htm. I also see that they offer direct-coil control, which seems like a universal (for single coil engines) solution. If anyone has done such a process, could they share any roadblocks or challenges that were memorable? Anything I need to watch out for? Currently, I'm looking at http://www.ebay.com/itm/MegaSquirt-II-V3-0-Solder-It-Yourself-Standalone-Engine-Management-Kit-/331773631314?hash=item4d3f3fdb52:g:V1IAAOSwBLlU70-k&vxp=mtr to purchase. It seems relatively inexpensive, but I know there are likely other sensors I may as well upgrade. I have replaced the NTC coolant sensor thus far, as I suspected it was running rich at idle due to a faulty NTC. I have already done some reading, but haven't read all of the vast amount of general info available on MSII. I guess I was just hoping some experienced users could help narrow down the focus of my research. That's about it! Any comments or hints/suggestions are greatly appreciated! Wade