i swapped my tranny today we reasembled my car did everything double checked everything twice try to start and the main realy clicks on and off rapidly and my vtec engagement light flashes too. this is the weird part there is no spark but if i unhook the iac then the relay stops clicking and the vtec light just turns on (even though it shouldn't) and i have no spark. so with it hooked up i have no fuel and with it unhooked i have no spark. my car is a 90 dx hatch origionally dual point multipoint converted. it has a d16z6 with a obd1 conversion and a p28 ecu. before we swapped tranny's it ran perfect please help right now i am up for almost any ideas

 

check your grounds, esp your main harness ground at the thremostat housing

 

Did you pinch any wires between the bellhousing?

 

hey did you check your NEUTRAL SAFTEY SWITCH ??? thats what it sounds like ---

 

bump