Originally Posted by DallasBoosted
Great sales pitch on the JB4, but do you have any input on why our DME's are reacting this way? Since the JB4 and Procede adjust fuel via the same mechanism, wouldn't the JB4 have the same issue with my stock DME programming?
Yup, I had a JB4 prior to my Procede. Same deal, maxed fuel trims too early.