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Old 10-04-2012, 02:37 PM   #13
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Member#: 208817
Join Date: Apr 2009
Chapter/Region: Tri-State
2006 WRX TR Stg2++


Originally Posted by rkramer View Post
ODBII spec calls for a certain number of conditions to be set. (fuel level isn't one of them) Basically a couple full warm up/cool down cycles and some miles on the clock.
While fuel levels don’t directly affect emissions they can affect emission components such as the "charcoal evap canister" Fuel tank must be between 3/4-1/2 tank IIRC before this systems properly registers.

Originally Posted by MannyMohawk#5 View Post
It has nothing to do with fuel level, but 50-60 miles of city driving seems to always work for me.
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