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They've told you time and time again that the AFR plot is incorrect and inconsistent with the rest of the data set (the accumulated data from several other test sites). You continue to disregard this point and focus explicitly on the AFR from this specific test. You must consider the trend of the entire data set and, when you do, it's clear that something was amiss with the sensor at this location. It's quite clear why it was reading "lean", it's wrong, but for whatever reason you seem determined to believe it. What you're suggesting is that this one location is correct and all of the other locations are reading false-rich. This is not a realistic view of the data. In other words, stop looking at the AFR plot on Chenc's post, you're missing the big picture. Furthermore, if JWT chips run rich at sealevel as you suggest, and they run "perfect" up here (as the multitude of dyno tests indicate), then perhaps Z's really do run a little leaner up here. This would suggest that what Woody said earlier is correct... by setting your Ash-spec ecu up so aggressively it's no longer tolerant of significant changes in elevation (which is what Zfreak experienced when he moved here). JWT's works everywhere by staying a bit more conservative, and yours is limited to lower elevations. Finally, this might also suggest that the Z32 algorithms for pseudo-barometric compensation are less than perfect. Big deal? Clearly it depends whose canned tune you're running ;)
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NA to TT, starting from the ground up... |
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