i was going to use the egr valve on my little boxer, as locally, be it pulp mills or whatver, the egr is equivalent to a chemical suicide for the car and driver..i disconnect these right away...
Also a carbed engine, japanese.. Alot of similar between the 22r function because of the year and carb paranoid unthunk weirdo engineering of the 1970s and 80s..
In injection what you are trying to do is bypass.
To make it work natural, by its own vacuum.. This needs thought. I do not have that correct... But there must be a way.
You could also add a large resonator chamber about a foot after the catalyst convertor.. This acts perfectly as a backwards air bypass, cylinders getting satisfied through their own exhaust. My own mileage lept into the 30s after making my own out of a hollowed glasspack, but keeping the steel innards.
On four cyls, about 18inch is perfect, the two foot is too big.. And only 20 bucks. Be sure packing is removed if you try it. The hollow chamber is the trick...
