AIR FUEL PROBLEMS P0102, p0031, p0051

So my check engine light came on and when I checked the code and was on getting p0102(mass or volume air flow circuit low input). Here's a little background I have a k&n cold air intake with throttle body spacer. Yes I know oiled filter not great due to oil residue getting on MAF. Yes in the past I've gotten a code from that but cleaned the filter up and MAF and all cleared and good to go. So this go around I thought it was the same thing. Truck was running normal just have the check engine light. I pulled the MAF, cleaned with mass air flow cleaner. Sensor looked good to begin with Plug everything in go to crank the Truck the engine stalls on first try. Crank again and everything crank up fine. Still showing the P0102. I pull the throttle body and clean it with the same MAF Cleaner. The throttle body wasnt that dirty. Put all back together and go to crank the truck and stalls on first try again but starts right up 2nd try. I have somewhere to go and begin driving and my truck will barely accelerate when you give it more than half throttle. When I let off the gas and slowly give it gas it begins to speed up. My guess is that it is in limp mode now? I start researching on here a d found some info. I put a new MAF sensor on and nothing changed, I proceed to change out the pcv valve. Still doing the same thing but now is reading p0031 p0051 p0102. So now I swapped out air fuel heater relay and didn't change anything. Please help guys still scratching my head!

 

I too am having a similar issue / if anyone has any guidance it would be greatly appreciated.

 

These should give you some idea what to check and how to check it. It also gives a description on what is happening with the sensors.

P0031 Code: and P0051 Code:

http://www.customtacos.com/tech.old...06toyrm/06toypdf/06rmsrc/rm2006ta/0050015.pdf

P0102 Code:

http://www.customtacos.com/tech.old...06toyrm/06toypdf/06rmsrc/rm2006ta/0050017.pdf