2013 Ram 1500 3.6 Throttle Defaults To Limp Mode P0642 pt. 1

This Ram has the 3.6 V6 and has had the parts cannon fired at it. The throttle body has been replaced as well as the Accelerator pedal. I believe there were two problems. Circuit F855 which is a 5 volt reference was intermittently shorting to ground on a engine bracket but also the oil pressure sensor was shorting out the 5volt reference. There will likely be a part 2 where I replace the oil pressure sensor. part 2 is here.    • 2013 Ram 3.6 Throttle Goes to Limp Mode Co...