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Re: Service Engine Soon - P0141
O2 sensor heaters are there to quickly heat the sensors up to operating temperature just after starting to reduce pollution while the engine is warming up. Once the engine is up to temp the heaters don't serve a purpose. Only three reasons to change it; 1) the service engine light is an automatic failure during emissions testing, 2) you are environmentally minded,3) you start seeing your mileage decline or it starts to hesitate or is sluggish.
Here's how: http://www.autozone.com/az/cds/en_us...rInfoPages.htm
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07 Fusion / 06 RAV4 / 06 Accord / 96 Gr Caravan
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