Pretty sure the stock tuning on the 2Vs ran stoich all the time unless the engine or catylist was over temp. Stoich under high loads can be too lean and cause detonation. Ethanol just leans the A/F out further. My 04' would never go into open loop with light to WOT throttle input.
Ditto. Mike@5-star's tunes make it go open-loop at WOT... I can verify that with datalogging, before and after
