Biggun
Junior Member
- Joined
- Apr 19, 2021
- Posts
- 13
- Reaction score
- 1
- Location
- North Carolina
- First Name
- Justin
- Truck Year
- 1990
- Truck Model
- K5 Blazer
- Engine Size
- 350
Doing an ls swap with my blazer. I have a few questions to throw around to yall and double check my thinking. And I hope I’m posting it in the right place. I’m pulling the old 350 and tranny out now. Do I need to keep the original pcm and attached harness for any functions or can I rip it all out. I know the new computer runs everything for the motor and tranny. I’ve done a lot of searching and everyone talks about the new wiring but not what to do with the existing stuff. Also I asked this in the under construction part but then I found this and it seemed more fitting.