2004 Ford Focus ZX5 2.3l?

I have a 2004 Ford Focus ZX5 2.3 L. 51,000
I have an intermittent issue with a P0171 code.
Start up starts abruptly high , not rough and then drops
The freeze data show.
Throttle body 26 %
RPM 900
Speed 0
Short term FT 7%
Long Term FT 29%
I probably getting this code at start up only
While driving STFT -5 to 7% LTFT 10 to 21 %
Mass air Flow 1 to 4 lbs ...Is this low?
I have notice this code usually occurs during code weather, I live in NY
and I don't have a problem during the summer.
I have check for vacuum leaks and could not find any.
I cleaned MAF and Idle air control valve
I am looking for direction before spending $$$$$
PS......
Another intermittent issue
The car is on a flat road after start up after 5 minutes warm up
The car seem to run on its own without touching the gas pedal
it runs to 20 MPH by its self
Any suggestion would be greatly appreciate