Good luck but I'm sticking with it..Anyone else seeing this, I just put the Triple dog in my dads truck on Sunday and read the P1621 code. I have called Bully Dog on this as well and same thing, non answer. I am taking it out tonight and replacing it with Edge Juice. It Rattles to much in his LLY, sounds like a bad batch of fuel in a gasser.-:t I hope it has no ill effects.
Good luck but I'm sticking with it..
The rattle is not a problem.. just advancement of timing. I personally like the free upgrades available on the net, versatility of multiple brands, speed limiter removal, tire size adjustment and code reader that the edge lacks.
Ross, that is what happened, the ECM was replaced under warranty and has not been a problem since, My dads truck is at the dealer for the same thing as we speak. I think that I will be sending the Programmer back to Bully Dog to have them check it out. Could the radio go out because of the Bully Dog?GM's description of that code is a little misleading in the manuals.
The programmer has programmed the ECM completely and successfully, if it didn't then the truck would not run. GM has a built in ECM memory check every time you turn the key on, if something is wrong, it won't start.
To me, it sounds like the ECM is not being restored to a 'happy' state after the reflash, though it is hard to tell 'exactly' what is wrong from the P1621 DTC description GM give. You can bet if it were at a dealer, that ECM would be replaced and that is probably why the description is so vague.
Yaz, I installed the Edge Juice on Friday and have been playing with it every time I get a chance. It is a whole different truck, the injectors don't rattle anymore, it tranfers power alot better and seems alot smoother doing it, and it doesn't seem to surge as much. I did get an odd alarm today acceletating mildly in OD, I heard the audible and to my surprise it read 2035*!.:jawdrop: I had to unplug the Attitude to get it to reset. I will let you know soon what it's like in the LLY. My dads comes in Tuesday.No problem you're welcome.. I have wondered how my truck would run with the edge compared to it..