12-26-2009, 11:15 PM
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#12 (permalink)
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Enthusiast Member
Join Date: Dec 2009
Location: Tulsa, OK
Posts: 430
Drives: 2008 350Z TT
Rep Power: 370
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Quote:
Originally Posted by G37Sam
Thing is, my FI test pipes have a J-shaped bung to fool the sensor in some way as to not trip the CEL, so that will require me doing custom work which I don't think would be worth it.. or would it?
Are sniffers completely off? Seen a few local Turbo Z's do it.
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From my experience, tailpipe sniffers seem to be fairly accurate at WOT, when gas velocities are the highest. Trying to tune idle/cruise/light load though, they tend to read a little lean.
I was doing some pulls on a Dynojet last month, and the tailpipe readout on the dyno's software consistently read about 1-1.5 points leaner than my Haltech widebands mounted in the downpipes.
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