dead 2000 Ram

Hi there. here is the issue Truck died coming home the other day, no indication as to an issue prior to this. Found there was no spark and fuel pressure at 45psi. No spark has been resolved with a crank sensor. Ran horrible. Scanned and found code for the temp sensor. Found the connector was broke/loose replaced. Now idles like a champ. Took it for a drive and it will not go over 20mph. rescanned and now there is a code for the camshaft sensor. Before we replace this I curious if I am causing damage to other sensor by chasing a wiring problem. can anyone tell me if these sensors are on a common ground wire or power feed? Or anyone else have any experience with this type of problem? thanks for any assistance.