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Old 01-01-2005, 04:58 PM   #1
Scooby Specialist
Member#: 56414
Join Date: Mar 2004
Chapter/Region: MWSOC
Location: Olathe, KS
2004 Forester XT 5MT

Default STi Utec question...confused about fuel

Everything I've read says if you increase points on the fuel map the IDC should go up. Well I find that when I increase the MAF voltage for the Fuel map my IDC goes down. Way down.

I increased fuel from .2 to 1.2 and in that area IDC's went from around 90 to 80. Also I'm noticing increased power. I always thought you'd get more power by leaning out...not richening.

I'm sure there isn't but is there anything with the Utec that reverses the MAF voltage...so adding voltage would really subtract fuel? That doesn't make a lick of sense to me but don't understand what is going on.
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Old 01-01-2005, 05:13 PM   #2
Scooby Specialist
Member#: 36528
Join Date: May 2003
Location: florida
2002 Impreza Wrx


It doesn't make sense. Might be a good idea to post some logs.

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