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Do you have the data to input for the map you linked, map and iat? That may be a really good option.

I thought the same on the trans, its a built unit but that is a lot of torque going through it. Ill probably work some TM back in and see how it acts. The vehicle has no o2 sensors and is fully ol....

Got the build sheet. 6.2, 243 heads, edelbrock pro flow intake, 80mm turbo, btr stage 4 turbo cam fic 1200h injectors, 90mm tb, non lockup verter. I believe ive finally got a decent startup ready....

Ive used it on n/a gen 3 truck builds stock and cammed. Definitely a noticeable difference in power and will offset the difference in bank to bank trims.

Made a couple more edits to make me feel better. I included another scaled file from the same shop, different truck and owner. Notice the ve similarities? These are not getting tuned. Also, the...

My bad for not giving more info. I dont have specifics, 6.2, cam, turbo, intake?. The main issues were in the starting, idle, i believe pulling in gear(the braf was still unscaled). The big one was...

I was sent a tune for a 900 hp, now 6.2. Here is the file i read and some adjustments i made to get it closer for the new engine. Old tune was trash. Anything i missed before i do the first startup?

Id really recommend going to a 2002 os file. Here is a file i made with some background changes to make this work. I have lots of issues with the 99-00 trucks starting.

They really done a awesome job on these things. Considering the cost of licensing maybe we should have more than 4 useable parameters.

Ive had a duramax ecm with the all "y" vin. I was guessing they used some box programmer on it or some mail order efi tune with a generic vin.

One of the other forums has some members working on p10 flex fuel capability. Pretty sure there is some tables in the background to make it work but may be some time off.

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Here is one setup and ready to go for...

I think your ve looks a little high in the low speed area. You will probably find a point to where you reduce the ve but the wideband stays rich. Them large injectors can only go so low on pw before...

I also thought of fuel pressure issues. I think that would be a good idea to check pressure on the cold pump. I say dial in the fueling completely before any further tuning to correct any issues....

I have seen a data sheet with a transient fueling table. I did copy it over, the difference was so small it would not have made a difference. Im guessing different injectors may have a different...

The 96 is the max limit in the pcm. The psi is actually controlled by force motor current. Most gm tunes have 98mv starting at 90-96 psi, 0mv being full line pressure. Setting the max to 96 is just...

After the maf and ve are dialed in i would think it should crank better. Im not sure what ect you are having long crank at but i made some adjustments at cooler temps. See if this is better or worse.

You can try that throttle follower table and see how you like it. It only makes it less aggressive in gear. Wonder why the BRAF multiplier is so low on that os?

See how this shifts. Please do some work on the ve and also make sure the new spark table works well

See if this helps you out any.

Many tables in the background to change. Im not sure i have definitions for all of them. Still cannot find the xdf with coil vs cyl. Not counting multiplier tables for knock sensors and probably some...

Here is one parameter you will need access to. I remember seeing a table for cylinder number vs coil pack.

Like i said above, the "firing order" table is only for misfire detection.

Is there not a 454 that was 0411 controlled? I know the 350 made it into 02ish. I believe the table for firing order is only for misfire detection. Someone with user defined parameters may be able to...

Greg is a true hero.