Can any one please help me? I have a 2001 2500 4x4 5.9L it will not idle. I got a code reader and it gives me the code 205 & 207 ( 5 and 7 injector circuit malfunction) I swapped the 5 and 7 injector with 1 and 3 , the problem did not follow. I checked the wires from the PCM to the injectors they are good. is the PCM the problem?????

 

I suggest you start with a tuneup, this will eliminate the cap, rotor, plug and wires as a potential problem, also you might look down the throttle body to see if there is any oil in the intake, if there is you have a leaky plenum gasket...and this may be contriubuting to your problem.