i just got done putting a supercharged d15b in my 93 civic and when i turn the key to turn it on......nothing no fuel pump running nothing any advice to what might be wrong....
i checked fuses and the wiring looks to be hooked up right and im pretty sure the problem has to be electric any advice?

 

erm i dont know!! did you wire up the grounds?? even the ones on the tranny?? check ur fuses again.. does it even turn over when u try to start it?? does the lectrical work like radio lights and all that as of now??

 

lights work no radio in it at the moment sunroof works dings when the door is open doesnt turn over doesnt make any noise nothing silence i didnt put the ground on the tranny yet (forgot) (just from the frame to the tranny right?) would that make that much of a difference?

 

yesssss dude it makes a world of a difference!!! it will not start with out the proper grounds.. u need all your grounds hooked up!! tranny valve cover and there is a couple more around the dash area.. i would get a service manual and find out where they are at and check them if you took more than the engine out.. my car would not start when i swap my engine in, and it was cuz of the ground on the tranny... i hooked it on and buala the car car came to life.. hope it helps and if it does you owe me big time!!

 

does anyone know exactly where all the ground wires are located on a z6 or know of a link to a diagram or something???

 

on from the tranny to frame and one from valve cover to radiator support, theres also one thats on the wiring that goes on the thermostat housing.

 

i got all those and its doin more like it should now but the fuel pump still isnt priming and it doesnt want to turn over.....

now i got my check engine light to throw 2 codes
one for my vtec pressure switch
and one for my iat sensor

would either one of these things cause my problems?

 

If its not turning over it could be a bad starter, or your wiring is messed up. Is the motor seized? Try spinning the crank with your hand. If it spins freely then thats not the issue. Does it try to make any sound at all when you turn the key? If all of that is good it should at least turn over. If it turns over and you still cant get it started. Check Fuel/Spark/Compression.

 

i think theres a problem with the wiring the motor isnt seized the starter works all the electrical works except for the fuel pump and the starter....im thinkin theres a bad relay or something thats stopping the current from gettin to that part of the harness

 

If the car was operating normally before you put the new engine in then more than likely its something in the engine bay. How about the small wire for the starter?

An extra ground from the valve cover to the shock tower on the drivers side wouldnt hurt.