Thread: P0101 or 0101. Whats the difference? MAF or Cam Position Sensor

I am kinda getting tired of these threads so I apologize if you are too.
I am chasing down this hard start problem/sometimes stumbling..
Smoke checked for intake leaks
Cleaned T/B
Cleaned out IACV
Swapped out AAC (benind motor).
Changed CTS a few times.
New O2.
I pulled codes from ECU blinks 01 01
Got a distributer from Llprad.
Engine starts up much better.
Problem, if it is above 80 degrees, I must hold the throttle open until the car warms up or it will die.
I was talking with a friend and he told me to check MAF. It is not in limp mode so I thought nothing of the MAF.
Checked Nissan MAF codes online and it comes back P0101. You see why I am confused?
The temps in NY have come down signicantly. In the morning the car fires right up to 1500. It wants to try to stumble, but if I feather the throttle it will catch itself and warm up perfect. What gives? The cooler it is the better it starts.
Hope this thread helps someone.

Ain't one long and one short CAS?

I do not recognize the P0101 code. I figured it is the same.

Man, you've had MAF-ish symptoms forever.