unstable idlling-stalling im going nuts

[leadfoot6]

12.5% of 5V is 0.625V so you could use a multimeter to achieve the same effect by adjusting the TPS to get that output value (sorry, I don't know which TPS pin that would be - I'm just too used to using the cable and software...)

Thank you.

That makes things somewhat clearer, but still with some questions that I believe it would be beneficial to answer.

(And it would be even clearer if the system did not get the posts out of the logical "time stamped" order, or add duplicate posts)

So, if I understand correctly is it quite possible to move the TPS to a position away from where any marking paint might indicate where the "correct" or set in the factory position might indicate, or away from where a "workshop manual" feeler gauge setting might be, as advocated by "Ensoniq5"?

Having previously had some exposure to adjusting 3 wire TP sensors, and understanding that in real terms, the actual physical movement away from the paint marked setting would be quite small, would I be correct in stating that it is possible to move a TPS away from an otherwise feeler gauge set position, and still obtain optimal driveability?

Can you make any comment on the adjustments made by "Metzger"?

P.S. Just to make even more certain, are you physically moving the TPS(by undoing the securing bolts) and rotating it, or are you introducing electrical adjustments to the operating system by "Evoscan" wizardry(whilst leaving the TPS unmoved)?

[WytWun]

P.S. Just to make even more certain, are you physically moving the TPS(by undoing the securing bolts) and rotating it, or are you introducing electrical adjustments to the operating system by "Evoscan" wizardry(whilst leaving the TPS unmoved)?

I've not attempted this myself but the adjustment is purely mechanical: undo the securing bolts and rotate with the multimeter monitoring the TPS sensor signal voltage (not the output of the idle switch).