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Old 02-04-2012, 11:54 AM   #69 (permalink)
dcb
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Has anyone read this? It discusses causes and effects of contamination of o2 sensors and cat converters and lots of other good info, i.e. monitoring both o2 sensors for performance (front sensor should be richer than rear), perhaps that can be quantified:
http://www.autoshop101.com/forms/h64.pdf
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