They were P0122, P1133 and P1635. Per Autozone, they mean
Throttle Position sensor open or shorted internally, or bad connector / connection to sensor
Failed HO2S11 heater circuit; HO2S-11 signal shorted to ECM ground; Check sensor connector to wires
ECM has detected a fault in the 5 volt reference voltage line; sensor using 5 volt reference line shorted to ground; circuit short to ground
I drove it 150 miles this morning. Drove great the first 45 miles, then at 70 mph, would loose speed, then accellerate quickly, sometimes downshifting to get back to speed, the repeat. When I arrived at first stop and turned off for 45 minutes, it then ran fine for about 30 minutes, then did it again, but got to the point where no matter how much I put on the gas, it would not go - but engine never died. At a stop sign, the engine would lope like running on 4-5 cylinders, then when light changed, pressed on gas, but car would not go and RPMs stayed near idle. I found if I turned off the car at a light, then started it when the light changed to green, it would run fine for a block or two, then started it all again. After my second stop of about 30 minutes, it started right up and ran fine for the 50 mile trip back home.
Changed MAS, so now have changed out O2, TPS and MAS and the problems are exactly the same, but there is something peculiar that may help and I'm sure I've mentioned before. After changing out the TPS, it ran great for about 3 hours and then on a trip of 50 miles. During that time and after a few stops, the check engine soon light went off. Then, on the trip back, it began acting up exactly as before and by the time I got home, I had to turn the engine off each time I got to a light. When the light changed, I'd start it up and it would run fine for a minute or two, then start it again. I then changed out the MAS and it didn't make any difference. Someone recommended changing out the computer - another few hundred dollars - but I'm not convinced it is the problem as the car always starts up and runs fine for at least 30 - 60 seconds after I turn it off and restart. When I start it on a cool and sometimes humid morning, it tends to run good for at least 30-minutes. When it's acting up, pressing on the gas has no effect except to make it try to stall out, and/or suddenly burn rubber and take off like a rocket. It will not accellerate, then take off, then bog down again and this makes for some interesting driving and stares from other drivers.