my truck has been setting a code of p1621 which i was told on here by another member was control module long term memory. they posted up some long answer that told me nothing. so i dont really know what to do. when i am accelerating sometimes the truck will do this stutter thing. only one stutter then it is fine. it use to do very occasionally but it has since been modified and it does it more often. i was going to take it in to the dealer but i thought that i would check on here first and see if anyone knew what it was. any clear cut answers and an idea of what i should do would be great. thanks in advance

Are you running a Bully Dog Triple Dog by chance?

no im not its a pred, but it was doing it before i got it just not as often

my truck has been setting a code of p1621 which i was told on here by another member was control module long term memory. they posted up some long answer that told me nothing.



what was posted was the diagnostic trouble tree which needs to be followed to find the cause of the problem. Take it to the dealer.

no im not its a pred, but it was doing it before i got it just not as often

10-4, I have alway's gotten P1621's with the Tri-dog, and no answer form them on why, just it doesn't hurt anything...

thanks for the definative answer

so what are they going to do when i take it in