03-27-2009, 11:15 AM
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#3 (permalink)
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Enthusiast Member
Join Date: Jan 2009
Location: Albany, NY
Posts: 302
Drives: PW 370Z
Rep Power: 17
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Quote:
Originally Posted by Josh@STILLEN
Unfortunately with the newer Nissan's, the second O2 sensor after the cat can adjust fuel trims, so it's input is required (can't just pop an O2 sensor emulator in there).
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Really? Thats weird, what exactly do they adjust using the second sensor? I thought it has always been there just to ensure that the cats are working properly and to set the CEL if they aren't?
Quote:
Originally Posted by NIZMOZ
Anyone with Test Pipes automatically will get the lights. If you had HFCs then you might not get them. Mine just came on after 4k of miles with HFCs. Berk mentioned stuffing Steel wool in the non-fouler bun and put the o2 back in and this will help some. But that is for HFCs, not test pipes.
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That isn't a garuntee, as shown by the fact that he only gets the CEL about half the time. And is the whole point of removing the O2 sensor from the exhaust stream a bit more with the sparkplug anti-foulers.
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