o2 sensor????
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Honda-Tech Member
Joined: Oct 2008
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From: kapaa, HI, USA
o2 sensor????
was wondering if the 2nd o2 sensor is nessary because i got a test pipe and i have a cel.. and im thinking of buying the o2 sensor similator? let me know what you think?
Honda-Tech Member
Joined: Jan 2006
Posts: 10,443
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From: Rochester, New York -> Santa Clara, CA
Re: o2 sensor????
The secondary O2 sensor is for emissions only, it doesn't change your fuel trim any, only the primary does.
If you have no emissions checks and/or the CEL being off isn't a requirement for your inspections, and you can live with the CEL being constantly on, then no, it's not needed - at all. It's simply to ensure that your catalytic converter is working - part of the emissions system.
If you have no emissions checks and/or the CEL being off isn't a requirement for your inspections, and you can live with the CEL being constantly on, then no, it's not needed - at all. It's simply to ensure that your catalytic converter is working - part of the emissions system.
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