Hondata

92 Integra
Rywire PDM (no oem wiring, all standalone)
Rywire Engine Harness
P28 S300 v3 [S/N: 57889 | F/W: 1.3 | S/W: 2.7.8]
All Capacitors Replaced by Nomis Ind

I recently upgraded to an S300 and I'm facing some issues when I loaded a fresh itr basemap with some parameter changed:
*ELD was disabled but would still throw a code 20, but error was not seen in Smanager (ghost code?)
*After reloading a new itr basemap with the same parameters I now have a solid CEL with no errors detected in Smanager (MIL shows 'ON' under sensors)

Any Ideas?

Have you tried the ECU in a known working vehicle?

Yes, the issue did NOT follow once installed in a known working vehicle-- No solid CEL
Reinstalled back into my vehicle-- Solid CEL Returns

It sounds like there may be a wiring related issue.

I will reach out to rywire regarding the issue. Thanks for the support