i have a 92 freightliner fl70 18 wheeler box truck. it has a 12 valve cummins in it. my question is, is there any way i could use a newer harness and computer on this motor to use a programer with it? i can swap interior electronics and all to if i have to thats no problem. also will the oil pan and pickup from a truck bolt right in place of the one on the freightliner

 

I wouldn't think there would be a way you could update your harness to use a programmer. There are ways you can beef up that 12v. Take a look around here and you should be able to find something.

 

I know i can upgrade it alot i was just wondering if there was any way to put a programmer on it or put an obd2 harness on it to use like a bullydog digital monitor tpe deal or not

 

But your prolly right about not being able to use a programmer but a digital gauge display like the bullydog watchdog would be nice