Help!

[CRJ Driver]

The other day I was driving back from work with low gas light on. The gas station I always use was closed...so I kept driving. (Distance to empty was 40 miles) All of a sudden SES light comes on 1 mile before I got home. The next morning I top the tank off and come back home to read the codes. (Actron CP9135) said P0171 and P0174 System too lean bank 1 and 2.
I cleared them and with in 25 miles came back on. Now I know I did something wrong when I drove it with no gas...I put a post on bimmerfest but I didn't like their attitude...I removed the engine cover and as I was looking around I saw the two hoses way in the back to be collapsed...They looked like vacuum hoses to me but they are too big to be vacuum hoses. Anyway, replaced them with 19mm heater hose cleared the codes one more time and drove for 30 miles the SES came back on...This time it won't idle...it drives smooth, but once at a stop light it dies...In steptronic going easy on the gas pedal it will accelerate past 5000 rpm. If I go hard it stops around 3400 rpm and car goes nowhere. There is no difference between engine warm or cold. Neutral will also not bring the rpm past 3400 when giving it full throttle, partial throttle will brink the rpm's to the red line. So I had to use gas/brake to get home, I pulled the codes, same ones, no new ones. I pulled the MAF sensor, sprayed brake fluid, let it air-dry, put it back on and this is were I am right now, I have to go to work tomorrow. I was going to take it to the dealer but since I don't like them I am afraid they will butcher me...I was thinking of replacing the fuel filter, car has 49000 miles and the o2 sensor was replaced at 37000 under warranty. Car is a 01 4.4i.
Thanks in advance for your help!