Transmission Problem?

[KindOfABigDeal]

Hey everybody,

Yesterday, a landscaping truck cut me off, forcing me to slam on the brakes. As I sped up to pass him out of anger, instead of shifting into a higher gear, my car's RPMs went well into redline and the engine seemed to cut power to the wheels. I let off the gas and after a good 7 seconds it finally shifted into the proper gear and I drove away. The rest of the ride home the car shifted normally.

However, later that night, i once again punched the gas when i was screwing around with some buddies. And to my surprise i noticed the same problem as earlier. My car has an Automatic Transmission (3.0i and 88,000 miles). I was in DS mode, which obviously makes it shift later, but never has it redlined before.

Not sure if this is a related problem, but my car has been throwing "Lambda contol tolerance Bank 1 and 2" codes (running to rich/lean)... which seem to be destroying my MPGs. Not throwing any transmission related codes however.

Making an appointment at the dealer for both problems. But any help on the first problem would be GREATLY apprietiated.

Thanks.