Im throwing codes 1 and 20 on the pg7. How do i go abouts checking/fixing why its throwin the code 20? and what is it effecting

 

did the code jusr appear or did you change your ecu? cuz a ecu i used before threw that ELD code. I just changed out the ecu and the code went away

 

yeah, i had the pm6 in and i threw the pg7 in.. Now i figured out what the prob is, cuz the harness is fucked up.. whenever i touch the wires by the ecu, it throws the codes, so i gotta be careful with the wires.. thanks anyway man