I was getting 20-23mpg with the last Camry I had (2.5/auto). Now it seems like I have to fight to get 20mpg with the 2.2/5-speed. The smaller engine just doesn't have enough power to get through into traffic on the way home.
The smaller engine has twice the mileage of the other car. That might be why, but I haven't looked into it. I'm still getting a CEL on the current car.