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o2 sensor heater after the cats

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o2 sensor heater after the cats

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Old 03-12-2019, 06:56 PM
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Join Date: Mar 2016
Posts: 28
Default o2 sensor heater after the cats

does any body know if the heater on the o2 is turned on by ground or positive. and does the heater circuit use a relay to turn them on.
 

Last edited by gregs80; 03-13-2019 at 03:15 AM.
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