Throttle Angle Sensor on 2002 Honda Odyssey

Hello, I'm sorry to say that shifting issues are almost always caused by an internal automatic transmission concern. No diagnostic tool will be able to show that, as it's an internal mechanical concern, not an electronic sensor related concern. I'd recommend an opinion at a shop near you to be sure, but that vintage of Odyssey was known for transmission issues. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.