Thread: Need help running rich!
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Old 07-14-2009, 08:00 AM   #4 (permalink)
Curly1
EcoModding Lurker
 
Join Date: Oct 2008
Location: United States of Texas
Posts: 43

Princess - '08 Chevy HHR LSSR
90 day: 23.66 mpg (US)
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No service light has come on. There are 2 sensors one before the cat and one after. I do think they are different. I guess it would be the first one that is bad?
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