learning something new every day, MPS repair info from those who have done it. Options

[bowzer]

Im looking for info on possibly repairing my MPS, and what better way to gain info than this site.The wealth of knowledge Ive learned on here in a short time is priceless,and fun.everyone likes a short story,so..several years ago I picked up a pretty nice 73 1.7.and with the help of several on here I got it in really good condition,for a driver.Im a Honda-Acura mechanic so I pretty much know my way around most related issues.after several years of ownership,I got the idea that a 2.0 would be a sweet swap from the 1.7.problem that I found was that most had been changed to carb.fast forward,I was just browsing this site and came across a complete 2.0 with the F I intact.The sellers description was that it was a strong,non smoking engine,so i jumped on it.It was a pretty enjoyable swap,super easy as everything fell in place, and it fired right up to boot.so a couple weeks ago,on the hottest day in Olympia I drove it home.The hp bump was just enough to make me feel that I made the right decision,except for slight hesitation that I attributed to just needing some tweaking.come to find out that the 1.7 MPS is not compatible with the 1976 2.0 system.I didnt even really know what that grernady looking thing was really.The seller of the 2.0 sent me the correct sensor.I got it yesterday,sucked thru it and wouldnt you know,no vacuum.so....couple of questions.thinking that if its only a matter of replacing the Diaphragm,how hard can that be?its the final adjustment that has led me to ask for anyone who has been down this road,how did you do it?If I could find a good used one,that would be a good option but i do like repairing things if it is an option.as a final thought.tangerine has the kit as well as a spacer that will make a 1.7 MPS compatible with the 2.0 ECU.has anyone used that?I know this is the long way to getting to the question,but its all related reading material.thank you.