Hello,
I am new to tuning in fact just purchased HPtuners. What I have is an issue when the truck is cold when I try and drive it stumbles around 2400rpm goes very rich and die's. Once the truck is good and warm it runs great. The tuner that originally tuned the truck is completely lost as to what to do next. Any help would greatly be appreciated.20-11-19 16-53-57.hpl