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Nope I had trouble with this for a loooooong time. My ECM was killed by a tuner long ago and they replaced it with a C&C ECM without my knowing about it. I had all kinds of problems with efi due to...

I do not post much but I will try to help you a bit here. I also made a couple changes to your tune and will send it back to you. Your boost fuel limiter will need a little work, also you have a...

The truck will run fine like that, it is a great way to start as well make one change at a time and see what happens.

Yes flash the clean file first and make sure everything works right and then tune away.

I did the reflash and still have the same problem, I think it is time to start checking the wiring harness.

So to update this I changed nothing, drove it to work this morning and it ran great. No hiccups and a nice smooth power. I should be happy but I have a feeling it will go back to what it was doing as...

Just a known good file, it is going to be reflashed at the dealer here in a week or so.

This is a 6.7 truck that seems to have some major tuning issues. First off it will run with my smarty just fine but with the recent problems I obtained a clean stock file and loaded that. I do not...

The top from left to right is your commanded fuel in mm3, and from top to bottom on the left is your rpm. The data that populates the table is what your fuel pressure should be at x commanded fuel...