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Tow Master 02-04-2008, 07:37 PM I have a 94 6.5 TD that I blew the motor. So I replaced it with a 97 6.5 TD now it wont run right? It starts and idles fine but once you go to accelerate it wont speed up at all? :confuzeld My question is whats the difference between the injection pump in a 94 and a 97? Thanks! RCpullerdude 02-04-2008, 07:45 PM The '94 may have had the 5068 pump that will not interchange with the others. Not sure what symptoms that would cause though. jifaire 02-04-2008, 08:05 PM The 5068 pump will just barely run with 5521 progrmming... I doubt a 5521 will run any better with 5068 programming. Any chance you can tell us what the numbers on the injection pumps are? Format is DS4 831-5XXX Tow Master 02-05-2008, 01:37 AM The 5068 pump will just barely run with 5521 progrmming... I doubt a 5521 will run any better with 5068 programming. Any chance you can tell us what the numbers on the injection pumps are? Format is DS4 831-5XXX I tried to see the numbers earilar.. I thought it said 5?44 but could be wrong. Also............ Everyone says you gotta use a tech one to adjust the injection timing... Whats the difference from the tech 1 and a regular scanner? Trucks at my dads auto buisness.. He has a motis and it reads the timing.. Am I missing some thing? Jasonsmack 02-05-2008, 01:42 AM Also............ Everyone says you gotta use a tech one to adjust the injection timing... Whats the difference from the tech 1 and a regular scanner? Trucks at my dads auto buisness.. He has a motis and it reads the timing.. Am I missing some thing? The scanner needs to be able to do a timing "re-learn". Many aftermarket scanners have the ability to do this, I am not sure what the motis is capable of doing on a 6.5. jifaire 02-05-2008, 02:05 AM Is your 94 a 3500 with an "F" in the VIN? IF so, it may have the 5068 programming. Don't you have the old engine (IP) to look at? | ||