Engine code on E250

[PAFordFan]

2001 Econoline V6 4.2

I got these codes but am having trouble finding the definition as to the cause.

P1270 Engine RPM Vehicle speed limiter reached
P0174 Systen too lean (Bank 2)
P1151 Ho2S Bank 2 Sen 1 in Suff switching lean mean.

How can I find out what parts I need or any other info tohelp me fix it?

Thanks

[LxMan1]

Welcome to the forum

The second two can be caused by a dirty MAF or a bad PCV hose elbow. Shes running too lean.

The first code means that the engine has turned enough rpm to reach the rev limiter.

[PAFordFan]

Thanks for the reply. Yes, she has turned alot of rpm's. 200 k miles on it.

Is this a fixable code or do I just clear it out after I solve the other 2 codes?

Its a work van that I want to run till it drops.


Thanks