1999 Honda Odyssey Error Code

I just recently had to have a rebuilt transmission putt in the van. When I drove it from the shop, I noticed that the van didn't respond like it used to. It felt like gas was not making it to the engine. When I stop at a red light for instance and then try to go when the light turns green, the van would go slowly even if as I pushed down on the pedal to the flloor. After about 5 - 10 seconds, the van would suddenly take off. It didnt happen before I had the transmission replaced. Now I went to get my inspection sticker and it did not pass because of a P0720 Speed Senro Circuit Malfuntion.