Ok so I need to put a gen 1 plug on for map sensor . Need to fig out order . ( has ls3 type plug now .)
Anybody done this ?

 

ls3 with the connector facing you and locking tab up left to right is 1 5 volt, 2 ground,3 signal

if by gen 1 you mean the square 3 bar map from like a syclone then
with connector pointed at you and locking tab up pins are left to right abc
a is ground, b is signal and c is 5 volts

 

Ok thanks . The other thing I have to fig out is the racetronix dual pump harness . I have the plug in Hobbs , just can't fig out what wires to hook to green wire from dominator . I have black, blue. Then red black on other connector.
One side the Hobbs hooks up . the other side I'm guessing is a ground signal from dominator? I'll try to post a pic .

 

I would ditch the hobb swtich and just use a output via holley to trigger second fuel pump.

 

thanks ,I’m gonna look into this . I’m building this with my buddy (when I have time ) . We work on it in winter when it’s slow . I’m assuming they sell another harness to make use of the outputs. Still need to fig what wire is what . Tried to trigger fuel pump with a battery we had kicking around but couldn’t fig out . Has 2 pig tails , and a jumper .

Hers what I have

 

You can’t trigger a fuel pump off that harness with just the battery. You’d need to use the trigger wire on the relay(s) and battery power at the same time. The wire from the dominator goes to the trigger wire of the relay. Look up the magnafuel dual relay harness, they have a little diagram. In the dominator make sure the trigger type matches what you hooked the relay to, usually ground. Also definitely don’t waste your time with the Hobbs switch. Asinine when you have a dominator with plenty of I/O. You can check out some of Devin vanderhoffs videos on YT for some wiring tips as well, he gets way into the Holley stuff.

 

Read over this 4 times:

https://documents.holley.com/techlib...10555rev17.pdf

Holley has the I/O harness, PN 558-400.

Andrew

 

lol Ya been reading that **** all day . Got it running , fuel pumps working etc.. only thing not working is the MAT sensor . Reading high error . I have 5v on 1 side and ground on the other so I think the sensor is junk . I go months without working on it so it takes me a couple days to wrap my head around it once I get back to it . We ordered the the input harness so I’m gonna let the ecu control both pumps . This thing is amazing the things you can do with it ( the dominator)

 

Temperature sensors are thermistors...You might want to read up on how to wire them....