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for those who use an ESC, you'll know there's at is a two- position switch that most set at 60% and 80% throttle. That's what I did using my OBD reader. At that time it would also show 100% throttle when I floored it. The OBD was showing 100% absurd throttle, until I swapped out some new batteries for the ESC. I had run the car for a few hundred miles with the ESC turned off. That caused the batteries to go bad. Once I replaced the batteries and turned the ESC back on, I'm getting 80.1% ATP reading. Talked to the folks who make the OBD reader and they told me it's telling me what the ECU is telling it. I have a butterfly valve that's wide open and I'm wondering if there's something else in the throttle body assembly that's telling the car it's only supposed to get 80%.
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