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Dave Noll · 07-27-2015, 09:10 PM

The AF ratio is calculated by input from the O2 sensor. Wide or narrow it's still an O2 sensor. The O2 is seeing lean while on the limiter because the engine is missing & oxygen that normally gets used up in combustion, isn't. It would be interesting to see the curve on a run without the two-step.

07-27-2015, 09:10 PM	#5
Dave Noll Senior Member Join Date: Nov 2007 Location: Div. 6, Eastern, WA Posts: 709 Likes: 2,668 Liked 238 Times in 111 Posts	Re: A/F Ratio The AF ratio is calculated by input from the O2 sensor. Wide or narrow it's still an O2 sensor. The O2 is seeing lean while on the limiter because the engine is missing & oxygen that normally gets used up in combustion, isn't. It would be interesting to see the curve on a run without the two-step. __________________ Dave Noll, EF/S ,?/SA 6526