Hi, i have a 2003 dodge ram 2500 5.7L hemi. I blew the original motor. I bought a used 2003 5.7L motor. And one of the main electrical connections do not match, as stated by the haynes book. This is the ignition coil, fuel injector, throttle body wiring harness. My jarnesses do not match though? Whats wrong? An how do i fix this? Thank you.

 

You could have a different PCM as there were two types around that year. One was the NGC and I forget the other right now. However, these are the four main harness connectors to the NGC PCM

 

I don't think that's the right connector. The ones that i have are both 16 pin connections but they don't seem to fit. The location of the harness is to the right of the throttle body on top of the engine. Thanks again

 

Ok, lets back up. We are talking about the PCM connections right?

This is what the PCM looks like

 

No well to make this easier refer to page 4A-16 of ur haynes manual. And look at illustration 15.23a

 

Haynes??

Who uses that? LOL.

Do yourself a favor and download the service manual from the links in my signature as well as the parts manuals