Ok so as I've been going thru the trials and tribulations of getting this truck running I came across a thread a few months back about how even though it all matches that some manufacturers don't work well with Dodge's pcm. Which I thought was iffy and didn't take it too seriously. Shouldn't of done that. FYI, Bosch O2 sensors aren't very compatible. Does anyone know where I can find out which manufacturers were originally used when my 2003 1500 3.7L was produced? I'd rather not waste mire money on trial and error. Thanks

 

NTK or Denso.