all the mafs are the same for the gmt800 trucks. if maf size is restriction time to go SD
Quote Originally Posted by maze2525 View Post
Yes you are correct. The tq was 424, but still can't understand why its throwing a code one time at 6200 then the next time its not. And yes its still the 5.3 maf who makes a bigger one? Im not getting enough air threw it for the top end