I've got a 2001 Ram 1500 5.9 magnum. and my check engine light came on. can anyone point me in the right direction to solve this problem

 

Moved to correct section.

What's REALLY strange is, P1407 is "EGR out of test range." Doesn't seem so bad, does it? Trouble is, your truck shouldn't even HAVE an EGR valve.... so, of course it's going to be out of test range....... It ain't there. Unless you have the heavy duty version?

Anything been done to the truck recently, that may have prompted that code? Has the PCM been flashed with a different tune maybe?

 

I forgot to mention that my dodge is gasoline.

 

Doesn't change anything. Your truck should not even have an EGR valve. What is the 8th digit of the VIN?

 

the eighth digit is Z

 

Ok, that's the standard duty 360. No EGR. So, either the programming in the PCM is wrong, or it's the wrong PCM.... Do you know if it has been changed??