ric355 wrote: ↑Thu Feb 02, 2023 10:17 am
bluegizmo83 wrote: ↑Thu Feb 02, 2023 4:43 am
I'm doing exactly as you did, trying to keep the OEM connector and harness so I don't have to rewire anything and can swap right back to the OEM ECU if I ever need to. My vehicle is a 2001 Kia Spectra USA model.
Here's the rub: In my case, I had to add just enough extra stuff to make it unlikely I would go back to OEM (I needed extra sensors and a different injection loom), the old OEM loom (2000 year car here) is a bit crunchy and really should have been replaced anyway, and it all worked great so I never needed to revert and I probably never will. So I would think carefully about doing work to preserve the OEM stuff as it gets in the way of a neat installation and can potentially affect reliability.
Thanks, I'll keep that in mind. However, I've already mapped out all the OEM harness wires for everything using a multimeter continuity test, and with my vehicle I'm not having to change or replace any of the OEM sensors/injectors/coils/etc, the only thing non OEM will be an added IAT sensor as the vehicle didn't have one and replace an OEM narrowband O2 sensor with a Spartan2 wideband (I'll still be using the OEM narrowband wiring harness since its already a 4 wire plug and that's all I really need for the Spartan2), so that O2 sensor would really be the only thing that would need to be changed for a swap back to stock, and to cap off the MAP vacuum port since OEM doesn't use a MAP reading. I highly doubt I'll ever need to go back to the OEM ECU anyway though, but I do like the clean install of using the factory harness and wiring.