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Trims versus Lambda histograms

Practical Reflash Tuning

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Discussion and questions related to the course Practical Reflash Tuning

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What is the pro or con to doing a STFT + LTFT histogram versus a commanded VS measured lambda histogram with LTFT disabled?

How much if anything can O2 transport delay / Time constant with long tubes effect either scenario?

Is there a method for observing O2 sensors and their behavior that allows for better calibration of the Transport delay and more accurate closed loop operation?

there shouldn't be a drastic difference between the two methods.

What is the context? Are you tuning WOT only?

Not to WOT yet, just trying to get the base calibration close.

We usually reply within 12hrs (often sooner)

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