As stated, 2002 RAM 2500 Cummins - I lost almost all power a month ago - Shop replaced lift pump and fuel pump - no change. A VW Beetle has more getup and go. Now, shop says it's the ECM. No CEL ever came on - ever. They wanted to send it out to have it reprogrammed. Now, no one has the old systems in house. Are they just taking me to the cleaner? With tow charge, I'm over $3000. Need ideas/help.

TIA,
NPPJR

 

Moving this to second gen ram section.

Do you have a scanner that you can plug in, that will read live data? That's gonna be pretty much a requirement for troubleshooting......