IN case it is not clear from the above post, the TPS for an automatic actually has two separate sections, where the manual has only one. ONe section is wired to the engine computer and the other to the TCU. When you test the one for an automatic you use the TCU section, and that is why the readings are different. If yours is hard wired, you'll first have to make sure you identify the correct section. I am not at home or anywhere where I can look at the thing or a picture of it, so I can't readily tell you which section is which. You may have to trace the wiring. Perhaps one of the Renix experts can supply the details. I hope I'm not imposing, but suggest that if you can't figure it out, you PM 5-90, who has done a lot of tinkering with these things.