haydensswap
Junior Member
- Joined
- Oct 15, 2025
- Posts
- 1
- Reaction score
- 0
- Location
- canada
- First Name
- hayden
- Truck Year
- 1984
- Truck Model
- 1500 high sierra
- Engine Size
- 305
Hey y’all, I swapped a lq4 ls into my 84 sierra. Got every wired up without the ecu on and fuel pump was running when the key was on. Plugged in the computer, someone tried to bench flash it idk what he did but he said he didn’t know if he had any credits left on his tuner so wasn’t sure if it worked. But I plugged in the computer now my fuel pump doesn’t run, I get no spark. Grounds seem to be fine just don’t know where to go from here. Temped to get a stand alone so I don’t have to deal with this
