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Old 09-15-2012, 05:39 AM   #1 (permalink)
SmellyCat
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Join Date: May 2012
Location: United States
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Heated vs non heated o2 sensor

I read the 02 sensor does not work till it is 300degrees. I cheaped out and replaced the heated 02with an unheated o2 on my tail pipe. Did this hurt my mpg? 94volvo940 wagen. sC

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