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Falk930 Falk930 is offline
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Join Date: Dec 2006
Location: Germany
Posts: 400
Dr.J,
theoretical I agree with all your points above.
In real its not easy to get a close to perfect result from the "autotune" function.
Especially when you use only AFR as parameter.
Driving conditions incl. load etc. are to complex for a simple AFR related autotune.

your point 4:
I am using Zeitronix wbo2 which has a warning function.
Unfortunately the warning trigger has no delay.
AFRs jump sometimes in the whole range for milliseconds.
The warning signal will appear even in perfect conditions
when you lift the throttle for a second.

Changing the UTCIS to mappable injector driver might be the better way.
But there are systems on the market which are much more developed
especially in programming and data logging.
My personal favorite is the MS2 for control pressure
+ you can map ignition and datalog all your parameters.
Autotune would be included to...just the MS style.

Falk
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Old 10-24-2011, 05:22 AM
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