OK, so there's an edited diagram for single-stage fan(s) in post #2. Copy GTO fan settings bit-for-bit, even though GTO originally used 2-stage/3-relay setup, and it will 'just work'. The GTO has Output #1 grounded any time any fan is commanded on in either low or high speed, so a single-relay setup won't know or care that there's another ECM pin that's not connected to anything.
https://www.hptuners.com/my-account/tunerepository/ (unless they helpfully redirect you to a country-specific site that has no files uploaded)
Thanks a lot for your help. I?ve found a 2005 GTO calibration file using a e40 ECM. I?ll do all the suggested changes and wiring and give it a try.
From this table, I guess if I want the fan relay kicks in at a lower temp, I must put a 91 at a lower temp in this table:
Temps config.png
Last edited by AlanDC; 08-05-2022 at 08:50 AM.