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Old 02-07-2013, 08:51 AM   #11
tmittelstaedt
Focus Enthusiast
 
Join Date: Jan 2013
Fan#: 108093
Location: Portland, OR
What I Drive: 2001 Red Focus SE Street Edition

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Hmmm....I suspect that either one of 2 things happened. Either when they were fixing the evap system the mechanic discovered one of the O2 sensors was unplugged or the sensor was just loose and tightened it, or when they cleared codes, it erased both codes and whatever is setting the P0422 code is only doing it intermittently. In which case if you have emissions inspection next month you might be able to slide through. If the light goes on again just go to an auto parts store and ask them to clear the codes and see if the light stays off for a while.
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