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Old 01-21-2009, 09:28 AM   #9
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Quote:
Originally Posted by theholycow View Post
Ok, upped the ISS/OSS addition from 300 to 400 and I think it's nearly 100% accurate now. I still don't know why it's like that, nor do I know how to deal with at low speeds (or for that matter, exactly where it becomes inaccurate).

I figured out why the TCC Slip Speed XGauge was reading 5000-6000 in Neutral. It was also doing it sometimes under engine braking, and what it's actually showing me is negative slippage, as happens under engine braking (and maybe in Neutral -- or maybe that info comes from the ISS, which has the theory I describe above). When it goes negative, the ScanGauge flips around from 0 to 65535, as computer programs often do. I don't know how to fix that, but I guess I'll figure it out eventually.
I know it can display negative numbers. When in DFCO my ignition timing reads -10.
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