A frieds daughters Civic would not start today. Gave an error code of 16 flashes. She has had this issue a few times before. After doing all the checks, everything looked gooed, except for the +12V across the injectors for 2 seconds following key on. I pulled the ECU and opened it up. The unit had a lot of surface corrosion. I intend to clean it this Monday, but I suspect she will need a new (or used) CPU/ECM. Will the ECM from a 1991 Civic work, I can pull mine and use it to test the rest of her car. At the moment my Civic is our only vehical and I am a little leary of swaping least I damamge mine. If we need to find one in a junk yard, what years will work? will one from a CRX of the same years work? Has anyone had any luck with the rebuilt units sold by Advance? They have several, from about 0 down to 0, the only differnce being the warrenty period. I pulled mine just to check for corrosion and there is not a trace. I would have thought the circuit board would have coated with a protective spray (silicon). Her car is a 1990, 3 door (or 2 door with hatchback), MT, dual point fuel injection. Terry