6. Cylinder duster is now a 340 ignition issues wants to start when you let up on the key

Well I have the starting issue that only wants to run when you let off the key. So I think whoever installed the new ECU and wiring harness didn't install the wire from the starter that was needed. After investigating and untaping a realize that the original wine harness for the four wire, ballast and ECU is still there, they just tapped into the wiring. I was just trying to clean out the wire in a little bit. They mounted the new ECU on the passenger fender with the voter regulator in the original ECU wiring and ballast wiring is on the driver side is still there so I'm trying to figure out which to do