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On 20 Feb 2005 at 20:43, Daniel Baum wrote: > Here's a question I've been wondering about for some time: is it possible > for bad engine tuning - carb adjustment, timing etc - to affect the > performance of the auto tranny, especially shift points? Yes, because the shift points are determined, in part, by the manifold vacuum, and if the engine is running poorly you will be giving it more throttle to get the same performance out of it. This makes the AT think the engine is working harder and it moves the shift points higher. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~