Theres a relay and fuse for the fuel pump and injectors. Have you checked them?

 

Bench test it as a sanity test, then add components one by one and retest.

 

Relay is good. Pulled it and tested it out of the truck. Not tried unhooking everything but at this point I’m ready to try anything. Thanks

 

By the way. On the relay fuel pump and injectors come off the same post. So if the pump not running the injectors are not firing. The coils tell the ECU to turn the pump on. But the coil’s are firing but the pump and injectors don’t come on.

 

Where did you buy this Holley kit from?

 

Holley

 

Want do that again there Teck sucks. You’ll spend at least an hour just waiting for someone to answer the phone.

 

Thats one thing I dont let the Holley power .

I have my fuel pump directly to the battery using a SS relay . The only thing the Holley does it pulse the relay with a PWM output . Pump comes on when RPM is detected

Before using PWM , I just used a toggle . Didnt like the fuel pump running while the key is on .

I also power my ECU with a toggle so I can look at the holley without the key on and adjust the fuel pump PWM output without key .

 

I thought about doing it that way myself.

 

Well had just a little to much help today. Friend of mine came over and wanted to help some. So I gave him some cutters and told him to cut some zip ties off I had a better way to hang them. Well he cut them off had to leave so we talked a little. After he was gone I got under there and it made me sick. He had cut my usb cable in half. Witch would be no big deal but mines hard wired in.

 

They make a can bus cable that does the same thing .

You won't need the usb

 

Order one yesterday. I don’t know just how to fix that cable even if it can.

 

Order it yesterday and they still have not shipped it.

 

That USB should have only two wires in it. Skin the covering and make a solder repair with shrink sleeve, use it.

 

Mines got like four wires coming from the ECU. Black, Red, White, and Yellow. I got a new one same color wires. The wires coming from the ECU have a fiber of some kind in with the wire. Wire is aluminum. New harness is copper no fiber. Went ahead and made the repair. Did not work. I ether I’ve got to remove the fiber strands or not solder them.

 

No fuel either wiring or how it's programmed in the Holley.

I have my dominator set up to prime my small pump and run the injectors, and the big pump is trigged to come in with 4 lbs of boost.