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Old 01-17-2003, 04:38 PM   #1
Scooby Newbie
Member#: 28859
Join Date: Nov 2002
Default UTEC Fuel tuning question?

When tuning the Utec based on A/F ratios is it okay to lean it out to "12.2" instead of "rich" when logging? ie. Tune so that all the "rich" values are saying "12.2" when on boost?

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Old 01-17-2003, 07:09 PM   #2
Scooby Specialist
Member#: 9073
Join Date: Aug 2001
Chapter/Region: NWIC
Location: Hillsboro, OR.
2006 ariel atom
wrb/bbs gold frame


Nope! TOO LEAN!!
DarthChicken is offline   Reply With Quote
Old 01-17-2003, 08:44 PM   #3
Scooby Specialist
Member#: 18384
Join Date: May 2002
Location: Seattle 'burb (Kirkland)
2004 STi: 580 AWHP
Java Black Pearl


Yeah, I understand that we're shooting for about 10.4 A/F.

Unfortunately, this is richer than our O2 sensor can read.

I finally managed to get knock event banned from my UTEC/VF34 setup. I kept adding fuel iteration after iteration until they went away.

I ended up changing some fields of the fuel map by as much as 2.3 or more points.

IE: from -6.2 to -3.9

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