For the past couple of months I've had problems with the AT tranny slipping on me and not engaging gears at the right RPM's. Last night it dawned on me that I swapped the ECU unit with one I found from the junk yard months ago. I thought to myself, maybe the AT transmission has sensors in it that tell the ECU what the speed is and in turn the ECU tells the tranny to shift at a specific RPM. So if I had the wrong ECU, this would be a problem.
So I thought I might have swapped my ECU with a manual one. So I swapped back my old ECU. (Thank God I still have it) Everything is back to normal. I'm so glad this problem was fixed because it's been irritating me and thought I might have had a shot transmission in my hands. I may have a bad water-soaked ECU or manual ECU from the junkyard. This might be some good info for some people with AT transmissions.
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