HEX codes and what they mean

[soutthpaw]

Jack, Funny you mentioned damaging another truck running the wrong Hex code. I Just replied to a FTE post where the guy had got a evolution programmer from someone else and hooked it to his truck.. the first thing he did was run the return to stock option as he felt the truck had previously had a programmer ran on it before he bought it..... so he basiclly put the other guys stock program on his pcm... now his truck runs rough and only goes in reverse suggested he contact bill about getting a Gryphon as Bill can get him the proper stock tune for his truck....

you can look at this post of Bill's at dieselsite for an example of how many hex codes there are hex codes 7.3 its for the diesels but you will get the idea... some of them are interchangeable... I am not running the original hex code for my truck due to another compatible hex code having better shifting strategies.....

[TA2Dsailor]

Thanks Jack. Well put

[Jackpine]

Originally Posted by soutthpaw

Jack, Funny you mentioned damaging another truck running the wrong Hex code. I Just replied to a FTE post where the guy had got a evolution programmer from someone else and hooked it to his truck.. the first thing he did was run the return to stock option as he felt the truck had previously had a programmer ran on it before he bought it..... so he basiclly put the other guys stock program on his pcm... now his truck runs rough and only goes in reverse suggested he contact bill about getting a Gryphon as Bill can get him the proper stock tune for his truck....

you can look at this post of Bill's at dieselsite for an example of how many hex codes there are hex codes 7.3 its for the diesels but you will get the idea... some of them are interchangeable... I am not running the original hex code for my truck due to another compatible hex code having better shifting strategies.....

That's a wild story southpaw! If I understand you, the Edge WAS at stock but he ran the "Return to Stock" as the very first programming choice? I can see how this would have loaded a previously saved "foreign" stock tune into his PCM (since that's what's sitting in the Edge), and, it would appear he's stuck with it too (until Bill or a dealership can reprogram his PCM).

It's my understanding that if the Edge was not at stock when he plugged it in, it would not have recognized his truck.

There seems to be some question about the other possibility: That if his truck HAD been holding a tune, would an Edge (set to level 0) recognize it or not? And, if it DOES recognize the truck, would it then store the current program in the PCM as the stock tune if he tried to program to a new level above 0? It's my understanding that anytime you retune your PCM from level 0 to a higher tune, that the Edge/Gryphon stores the current PCM's tune as the stock tune. This does not occur, of course, if you simply switch between advanced levels.

There's a huge list of hex codes for gassers too. I used to have a copy of it but decided it wasn't of much use to me. I hadn't thought about some being interchangeable, but I suppose an OEM flash and a dealer reflash are interchangeable (as an example).

I keep thinking this subject should be simple, but it's not!

- Jack

[dplummer87]

Hey jack, thanks for the info again...If you get a sec do you mind checking to make sure i have all the info thats needed in my user cp....(im assuming you're a mod...I thought i saw somewhere else you checked some guys) if not, forgive me.

[soutthpaw]

Yeah jack, I think 2 word that never go in the same sentence at PCM tuning are "Simple" & "logical"

[Jackpine]

Originally Posted by dplummer87

Hey jack, thanks for the info again...If you get a sec do you mind checking to make sure i have all the info thats needed in my user cp....(im assuming you're a mod...I thought i saw somewhere else you checked some guys) if not, forgive me.

Your information seems complete, dplummer. The hex code is certainly the correct format and I can only assume you entered your serial number correctly (there's no format for that).

- Jack