hello to all my powerstroke 6.o has no power already cleaned turbo and egr valve and replaced map sensor and hose .but if you hold the throttle at 3000 rpms for a min it will run great.any ideas thanks in advance threw a p2262 code but now its off

 

Is it tuned?

 

naw i just got back from messing with it and it has a leaking y pipe would that cause it