duramax 6.6l injector trim files

[bigdogeatsfirst]

hey guys used the verus for the first time to calibrate new injectors
fumbling in accidentally program one without putting in any of the new characters it retained its original trim file however once existing the cylinder in question would not let me reprogram it nor was it even a option in the cylinder list as were the other 7 that i program correctly tried disconnecting the battery nothing i released it back to the customer but was wondering what should i do in the event this happens again or if im able to get a hold of the unit in the future as well as another model year 2005 to be exact did not offer any way to enter a trim file into pcm although the new injector came with a trim file i have done a couple cat injectors and due to computer issues did not program them but i dont care for not doing things correctly any thoughts

[Scott_65]

I didn't even think 05's needed fual quantity programmed, but it's been a while since I've seen one go bad. The 04 era engines were horrible about failing injectors, but didn't have to be programmed. I don't have one to hook to at the moment so can't be of much help. The only thing I can think of would be check and clear codes or any memory (like ford's Keep Alive Memory), and see if it comes back. Or reset your scanner as though your hooking up to a new truck perhaps. It's odd that you can't re-access the injector after programming it once. Not sure if it would be the truck or the scanner preventing you from doing it.

What version are you running? I know that a certain version on the verus had some type of issue where you couldn't type the characters correctly or something, but I don't know which version, and I believe it was on Fords. But could be wrong, so just something to keep in mind.

It shouldn't cause any damage. At worst that I've ever seen, it could set a misfire or contribution code if not programmed correctly. If it were to do that you would have to try something, but I suppose technically until then it's not really hurting anything. I doubt it's over-fueling enough to wash out a cylinder or anything like that. A cylinder contribution test would tell you a little about it perhaps, how far off that cylinder is.

Not much help but I noticed no one had responded. Just a few thoughts

[Glide]

As far as I know,you only have one shot to program injectors for a duramax.In a 05 it may not make enough difference to matter.
If the ECM were to be reflashed you could probably program them again,for sure after ECM replacement you can.

[Scott_65]

Oh I think I misunderstood. The part that said "as were the other 7 that I program correctly", I took that to mean they were still in the list and could be altered. And that only the one with no iqa was missing. My mistake

What I don't understand though is, if he didn't replace the computer then why was he allowed the one opportunity? They should have been programmed in at the factory. So if it's a one shot deal, that should have been it? So something reset it to allow programming, or something is blocking it now. Possibly the verus recognizing it's already been programmed? If not, it would seem the dealership is the next stop unless you have a passthru device or efi live

[Glide]

Oh I think I misunderstood. The part that said "as were the other 7 that I program correctly", I took that to mean they were still in the list and could be altered. And that only the one with no iqa was missing. My mistake

What I don't understand though is, if he didn't replace the computer then why was he allowed the one opportunity? They should have been programmed in at the factory. So if it's a one shot deal, that should have been it? So something reset it to allow programming, or something is blocking it now. Possibly the verus recognizing it's already been programmed? If not, it would seem the dealership is the next stop unless you have a passthru device or efi live

Once the injectors are replaced you can program in the new ID's,but once that is done the ECM recognises them as they are programmed and are write protected.

[Scott_65]

Once the injectors are replaced you can program in the new ID's,but once that is done the ECM recognises them as they are programmed and are write protected.

So if the injectors are replaced again, the option will show once again to reprogram iqa's? That seems unlikely, how does the pcm know they are replaced? There's nothing about the injector that provides any type of identity feedback that I'm aware of. So if that's the case, that would mean trucks that come in for new injectors and the option isn't available to reflash injector iqa's, it's likely been done elsewhere and will have to be reprogrammed to reset that option.

[Witsend]

That seems unlikely, how does the pcm know they are replaced

How does your printer know the ink cartridge is the same old one you refilled at Costco and refuses to print any longer. Same type of BS so the OE manufacturer can get more money out of you.I just hope when I go, God will give me a new injector pump before and after each one of my 72 Virgin Fuel Injectors

[Scott_65]

How does your printer know the ink cartridge is the same old one you refilled at Costco and refuses to print any longer. Same type of BS so the OE manufacturer can get more money out of you.I just hope when I go, God will give me a new injector pump before and after each one of my 72 Virgin Fuel Injectors

Those expensive ink cartridges are expensive because they have a little chip on the front of them that tells the printer it's id. At least that's how they used to work, not sure about the brand new ones. When you used one of those refill kits you had to work around this somehow so that the printer wouldn't think it was still empty. I've never used them, but I remember reading something about it.

As far as I know, these injectors don't have any such thing built in, seeing as how they only have the two trigger wires connected.