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Old 04-05-2010, 12:41 AM   #1
Scooby Newbie
Member#: 102852
Join Date: Dec 2005
Chapter/Region: South East
Location: North Carolina
06 sti

Default leaning out for crusing

Is there a way to lean out 06 sti for better gas mileage more then 14.7 Something like 15.5-16.0??
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Old 04-05-2010, 05:11 PM   #2
Scooby Specialist
Member#: 232940
Join Date: Dec 2009
Location: cold

yes, there is a closed loop targets table. here it is on an 05 LGT, stock and my current values:

and a log of steady-state highway cruising after these settings were applied:

just be careful, if you go too lean you will encounter some stumbling. And the engine doesn't seem to tolerate much leaner targets at idle or right off idle.
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Old 04-05-2010, 10:41 PM   #3
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Member#: 171948
Join Date: Feb 2008
Chapter/Region: Tri-State
Location: new york
08 wrx stg3 vf52
14 legacy, 11 fozzy


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