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Old 06-21-2013, 08:24 AM   #20
RecoveringSaabaholic
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Member#: 250265
Join Date: Jun 2010
Chapter/Region: NESIC
Location: Portland, ME
Vehicle:
2006 Impreza 2.5i
Blue

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Quote:
Originally Posted by PA-Outback2000 View Post
try an o2 sensor spacer (spark plug spacers would work), which moves the sensor out of the exhaust a bit.

i was CEL free untill i added the borla header to the mix. i was running stromung catback and random technology high-flow cat before the header. once i got those codes, i put the spacer on and have been CEL free for 3-4 years.
Do not use an o2 spacer. read this to find out why:
http://forums.nasioc.com/forums/show...rear+o2+spacer
You can go into the ecu and disable the codes, or simply ignore them. They are cat efficiency codes.
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