DTC P1211 & P1249 all of the sudden.

[fynnmore]

Ok so here is the low down. My tranny blew up a 2 weeks ago got that fixed and since I put a shift kit in my tunes dont like the kit. So i put my truck back to stock couple days ago and shifting great. Well today I get in after work to drive home and its like I am some old piece of $#!# truck not my baby.

Drive home shifting hard gutless etc.

Check my codes I got 3 codes DTC P1211 & P1249 & P603. Well I know what P603 is no issue there. But after looking up the others I run to town and buy a updated ICP sensor (mine had oil in it so it was time) now truck idles smoother.

And on the way to town aproximatly 30miles truck ran great after I cleared my codes. Got home installed new icp sensor went for a ride and I got the codes back.

Any ideas?

I am have a week I have done a rear wheel bearing and seal, tranny and now icp sensor and its still not right.