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LTX and LSXPutting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.
For a 1997 F-Car...
C100, C105, C210, C220 and C230 Connectors do not Connect to the PCM.
Please review the Image below, as labels for the PCM Connectors (and the C100, C105, C210, C220, C230 Connectors) are shown:
Also, please use the Hyperlink below for any other Gen-II SBC LTx Based EFI Wiring related concerns: LT1 Swap
Have Fun!
Upon inspecting my 97 harness, I didnt find any cut wires from what i could see. I also have all the Cxxx connectors in the pic above. Harness is from a 97 T/A. It dont have a fuseblock (so i assume no FP or fran relays??). I have been on the lt1swap site, goldsswagon, shbox, etc. Thank you for the refrence. What can i do about the no fuseblock fiasco? I dont want to build one, looks beyond me. Is it possible I can use 1 from another model of GM car or truck? I appreciate yalls patience and response.
I spliced the LT1 wiring into the camaro's harness and used the camaro's fuel pump relay.
I only used a fuse block for my radiator fans on my swap.
I bought a universal fuse block from amazon,it was pretty simple to wire up.
You wont need the underhood fusebox, you just need relays for fuel pump and electric fans. The 4th gen fusebox is big and bulky, I tossed it and used pigtail style relays.
Hey, So I have a 95 LT1 salvage motor that came with the engine harness, but which doesn't have the OBD2 (OBD1.5) connector, since that was inside the car. I used the shop service manual F book#2, Page 8A-202-7 to track down where the OBD2 plug gets wired from. It comes through the white ("NAT" color) plug # C220, shown in the picture above. So I can de pin this connector (Or grab this matching male plug) and use pin F (TAN wire) to get the Serial Data Signal needed for the OBD2 plug wired as OBD1. Then I can use my ALDL cable to wire up and hopefully program the PCM. This is going in a hotrod project, but I'm trying not to butcher the original harness at this time.
06-28-2022, 07:26 PM
