As there is no comprehensive info available about the ECU 'tunes' provided from the factory since production began, I don't imagine anyone can know for sure what your experience with Stage 1 will be regarding fault codes.
My 2012 machine came to me (used) with Stage 1 installed and the standard ECU. Never had a fault code. I later added an unlocked ECU and spent some time merging adaptive maps with the base maps which further smoothed out the engine operation, especially at lower rpms. Still no fault codes.
YMMV, as the saying goes.
Last edited by Bitsobrits; 07/05/20 04:26 PM.
