Got this code on my dads truck today. Seems to run fine. He has AFE stage 1, van akin chip, 4" exhaust. I was wanting to no what it could be.
Thanks

 

If i remember correctly that is Turbo boost sensor A circuit. look for a restriction in your intake and possibly exhaust and also check the boost hoses/clamps. also could be bad MAP sensor mine did the same thing ran fine and all but check engine light was on and it was P0236. replaced MAP sensor and cleared code and all is good.