i haven't got hptuners yet going to in the near future. the question i have is. i have a i4 manual colorado. i have drove a few of them and most all of them have a slight surge or miss i call it. has anyone seen this and was able to get rid of it with the software. this has drove me crazy every since i bought the truck new 9 months ago and 6 trips to the dealer. no luck there all the sensors are ok.