ok here is the deal, i have a 93 hatch dx and i swapped a y7 motor into the car. the motor ran great in the donor car. well i get it put in and all wired up and it wont start at all. im using a p06 ECU, the dx wiring harness, obd2 dizzy, obd2 Injectors. so it wont start, just cranks. so i checked for spark its great. so then i move to fuel and the Injectors will not open if i put a ground wire to one of the injector wires it fires. so i have a injector ground prob. i have changed Injectors, dizzy, ECU, and still wont start. what controls the injector ground? please help thanks

 

have you checked the ground on the thermostat housing ?