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question about sf downpipe for an lx

Old Jun 12, 2006
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question about sf downpipe for an lx

Quick question for you sf owners out there. If in install the 02 sensors into the 2 o2 bungs that sf has welded into the downpipe for a lx dx, will the car throw a primary or secondary 02 sensor light? Reason i ask, im trying to get ride of my cylinder misfires, and i have it narrowed down not to my o2 sensors.

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Last edited by Jeff; Jun 12, 2006 at 10:10 AM. Reason: Automerged Doublepost
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Old Jun 12, 2006
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If u don't have a real catalytic conv. between primary and secondary O2 sensors, u will throw a cel for the secondary O2 sensor voltage. U need to make a mechanical O2 sim or get an electrical one.
Are u getting cel's for cylinder misfires? Misfires might be a separate issue than the O2 voltage.
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Old Jun 12, 2006
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Originally Posted by sitinduk
If u don't have a real catalytic conv. between primary and secondary O2 sensors, u will throw a cel for the secondary O2 sensor voltage. U need to make a mechanical O2 sim or get an electrical one.
Are u getting cel's for cylinder misfires?
Correct. The primary O2 sensor could be the cause. We have seen this in the Scion tCs.
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