Any help would be great. Bought a 1990 fox the motor had been swapped out of a 1995. All the 1990 top end and electrical was used. Car is not firing on 3 cylinder. Cylinder 2,4,and5 are not firing. New items are plugs,wires distributor, mas sensor,throttle sensor. Egr was deleted I have went over everything I think and can't seem to find the problem. New injectors and all are clicking fuel pressure is 38 with key on. All of this was done by previous owner. Check engine light comes on wen revved up but then goes back off.