ever figure it out? same problem here but no misfire codes.

 

i guess we all just have the mystery misfire because i have the same prob some days my truck hauls *** then some it bogs down real bad which to the point it sounds like a diesel out the exhaust pipes it sucks having the stall conv when it runs like this because i sound like a dodge going nowhere lol. and no misfires on the efi logs

 

Yeah some of the trucks the camshafts went flat on all or some cylinders. And on some I have seen fuel rails get trash in them on the returnless systems.

 

at 50k?