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Bosch Motronic is unable to run closed loop at WOT.
Oxygen sensor has no input, uses preset maps to fuel the engine. In stock form you will find that it’s a fairly rich AFR.
I recall when oxygenated fuels first came out. Some dyno runs with sport bikes showed an increase in power. You could get disqualified in racing using pump gas vs high octane race gas if they were fuel testing that weekend.
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Jeff
74 911, #3
I do not disbelieve in anything. I start from the premise that everything is true until proved false. Everything is possible.
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