hey mate im about to finsh fuel injecting my a14, as for your sensors/ecu, if all the hyundai sensors are used you should be able to get some noise out of it. as for your coil packs a camshaft position sensor is needed to fire them correctly, now of course you need a crank position sensor aswell (all efi systems do) a chopper disc mounted to the crank pulley is probly the easiest and quickest way. but what i used for a cam position sensor is an electronic a series distributor, grinded 3 points off the reluctor inside the distributor so it suplies one single pulse the the ecu per every tdc on cylinder #1 compression stroke (or every 720 crankshaft degrees). that way you are abloe to run fully sequential injection and your 4 individual coils.
i have done some extensive research on this and feel free to ask any other question mate, too happy to help, go the datto