***Official WA Chat Thread***
Particularly l2r99gst's post.
The ECU is stupid when its in closed loop...it just looks at the maps and tries to send whatever amount of fuel the maps tell it to send. This is regardless of fuel type. No attempt to hit a specific AFR (stoich) as in open load.
Realistically the sensors measure unburnt fuel. The same quantity of pure fuel vs fuel/alcohol mix is going to have a higher ratio of fuel going in to begin with. But of course this is 1:19AM logic/theorizing so....
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