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What's funny is I have been telling you all this for years and no one wanted to listen. Now that GM has let the cat out of the bag so to speak you can bet more people are going to get caught and warranty denied.

The attached document should let you know that GM is looking and they can detect a power increasing device event if it's NOT a programmer! They have been able to do it from 2005 model year and on regardless of what you think they can do.

It's a race truck with mostly stock body panels. Many changes have been made from a stock OEM 4x4 truck that it once was when it rolled off the factory floor. This is what you do when your going to go racing. They got the A/DT record at 173.xx MPH. There is also a Dodge still running that has...

It will take more power sooner, but the TCM has no idea it's there, so yes you need to let it learn anytime you change the power level!

That's the big trick to fuel economy in a Duramax! Keep it down to 55 - 60 MPH. I did it one time for a test of mileage and got 23 but hated the pace. My everyday in town with both freeway and street driving is right at 18 and the open highway is just slightly better but I tend to run just a...

Just make sure you check it by hand as the Dash after any type of programming is incorrect.

The only one completely rebuilding the injectors is Bosch/GM. If you buy from anyone else you will not get the same thing. Bosch will not sell the rebuild parts so you cannot do what they do unless you want to make your own injectors. If all your looking for is a good running truck and not...

Did you try adding the ATF in a tank and running it yet? if that changes it then I woould get some stock ones from GM as they at least carry a warranty.

Look the TCM has no idea how you drove it. It has several cells it stores the learned information into for each gear change. If you put it into Fast learn and then go Race you will destroy the transmission, so NO do not do it. While it may work for some it will not work for a stock transmission...

How long did the motor sit while doing the repower? If things sat too long it is very possible that you need to run it for awhile to settle things down in the engine itself. Since you pulled the heads and all if you haven't run it at normal operating temperatures and put a hundred or so miles on...

These new fuels do not have enough lube in them as far as I am concerned. Thats why the bio mix helps as well. I put a full quart of ATF in every 5th tank. No high dollar stuff just the cheap stuff. I had 2 injectors go on my LLY with less than 20K on the clock. I've been doing it ever since...

The best thing you can do is to keep it at the same power level all the time that does not hurt the transmission. The TCM learns how to shift each time it shifts. So if it checks itself and says its good as is then it is left alone. The downside is that once the TCM learns it changes from what...

If you want to really firgure out what you can get away with, drive it for awhile how you have it and slowly see if it will handle full power through all gears on this setting. If it does and shifts well step it up one more setting and check it out again. Once you find the limit do not stay...

If you have read the unit properly then they have a typo as it should be mPa. That is a unit of measure for reading pressure 30 mPa = 300 bar = 4350.9 psi The Desired is what the ECM is telling the pressure to be at and the Actual is what it really is. Those number look fine so it's not a rail...

If you have a scantool look at the actual rail pressure and the desired rail pressure when you have the problem. If they stay close together its not a regulator if the Actual is high by more than 500 psi you've got a regulator issue.

The only thing that I learned with mine was to go back over all the mounting bolts after your first tow. No real problem but I found that several bolts needed just a bit more on them after the first Tow. They were tighten with a torque wrench both times.

Last I checked one it did both but that was several years ago.

Just check with the people who do the coating and ask them if they can coat hole in this size range. The hole could be opened up to allow for the coating but I doubt it still will work. Most plating processes do not work in small holes, but you never know without asking.

I think what you would need to do is leave the EDge off for awhile and see if you get a code again. If not then it is the Edge that causes it. This is how the Edge and all other pressure boxs increase the fuel and maybe in your case it is on the edge of being too high. Start a test with no Edge...

I would think that the small size of the hole it would not be possible to get the coating to apply evenly and smoothly enough. The injector tip hole size is ~.0061" and the seat area that wears out most times is the return seat and it ~ .010"