I just replaced the main relay and still nothing. I put a test light to the black and yellow fuel pump power wire and turned the key, its not getting power. What could this be? It worked fine two days ago

 

fuuuu grounds maybe

 

I have two real thick engine grounds

 

check the ground wire with a ring connector on the end that comes out of the engine harness and connects to a bolt on the thermostat housing - make sure it is clean and secure

 

Checked that as well, its real clean and secure

 

i used a rywire harness with my k-swap, ryan told me without k-pro my fuel pump will not run, i had to ground out my fuel pump wire at my ecu and run a switch on main rely untill i can get k-pro i no its kinda half a$$ but it works for now, call hybrid racing and ask what they think, this is a common problem with k-swap cars and i'm sure hybrid racing guys will point you in the right way

 

Which wire did you ground? How did you do this?

 

What ecu are you running? There is a capacitor in the ECU that can go bad and not let the fuel pump prime.

 

Link to a pgmfi thread about the issue.

http://forum.pgmfi.org/viewtopic.php...=17668&start=0

 

i ran my fuel pump wire from my rywire harness to ground and hooked a switch to my main relay, my ecu wont turn my fuel pump on without k-pro, hope this helps call hybrid and see what they say about it sure they can help

 

I used this to manually wire my relay. #5 goes to a thick 12v wire that switches on when the key is to the on/start positions. #1 was getting constant power so I left it alone. Left #2 #3 and #4 alone. Grounded #8 and let #7 power the pump. Now my pump comes on when the key is in the on position, and A13/A15 are getting 12v power, but engine wont start. Could it be flooded? Why would it have started before, but wont start now? I checked the ecu fuse and its good