Quote Originally Posted by Daveyboyjunior View Post
I know every truck is different regarding limp threshold, but I would have thought 15psi on the Dawes is comfortably under limp. But I have to admit it does sound like it.
Maybe start with the easy stuff and bring your Dawes setting down a bit more as an experiment.
Perhaps the MAF sensor could do with a spray clean?
I have no idea how to adjust the Dawes, just adjust the screw on top?
My mechanic said that it may be the MAF, he is going to have a look and give it a bit of a clean.
He said he will hook up a scanner and see if there are any errors.