im almost ready to give up some one help plz

ok i have done the mpfi swap in my 90 crx,it has the si tranny,si distibutor,si intake,some one told me i could use the 1.5 dx engine,cam and all so i hooked the si stuff too it then did the mpfi swap n the car ran horrible stalled and everything,so today i put the si cam in the 1.5 dx head and (1.5 dx bottom end,)becuz i heard the 2 heads were exactly the same except for the cams,i adjusted the valves with feeler gauge and timed the cam with the bottom at tdc,and now the car wont start i checked fuel pump and pulled off the line on the fuel rail to make sure the fuel was getting up there and it is,you can here the injectors turn on,it has good spark,the spark plugs are sparking,the main relay is brand new,i swapped dizzy's with one i know works the ecu is throwing a code 10 witch is ait sensor im not sure what that would have to do with making the car not start??umm ive been at it for about 3 days now me and two of my friends have spent countless hours and im just about to give up ,it turns over good doesnt sound like any valves are bent...the firing order is good we checked that..i went over the wiring me and 4 ppl who have done the mpfi swap all went over the wiring and it is good everything is hooked up right..all fuses are good i also reset the ecu fuse lol (a couple of times) i just dont know plz someone help me....~marcus

is the engine grounded

is the engine grounded
YES ITS GROUNDED OFF THE VALVE COVER...and the normal ground by the battery.....*rolls eyes* but thanx for the suggestion

I'd recheck your timing it could be off just enough drive you nutz..When I replace my distributor it was off and it drove me crazy till I took it back out and redid it

here is something that i had to do check to see if you are getting fuel all the way through the fuel rail
Take the fuel pressure return line off and make sure that the fuel is getting all the way through the fuel rail. post it after you try that