well at 39208 miles i got my first check engine light. only problem is i dont have a scan tool so i am going to napa this morning to find out what it is. just cruising down the highway doing 120 mph pulls and then it came on. truck was still pulling up to 120 mph with it on so i am thinking nothing bad. my old fullsize you would be ablr to do the key on/off trick but cant seem to find out how to do it to the dak.

 

Do you have the Jet ignition module to allow your truck to exceed the electronic governor ?

 

yes i do, but dodge says the limiter is set at 118 mph and with the corect software truck will do 130 mph.

 

What is the correct software ? How/where ?