I am tuning my I5 and was having a great amount of success until i started trying to change the idle around to have better throttle response off the line. The stock program has a idle RPM of around 650 which sucks off the line... i have found a great sweet spot at 725 or so RPM, but i now have a new problem, about 2/3 rds of the time i am braking now when i hit about 20 MPH and 1000 RPM the RPM's just hold around 1000 until i hit 5MPH or so and then they dip down to like 550-625RPMS and surge for a moment until they go back to 725. I have done some reading on the site and it seems like i would want to adjust the throttle cracker to fix this yet i can't find any table like that to adjust for the colorado and i am thinking it is because it is drive by wire and not a throttle cable??? help me fix this as 725 gives the rado a quick response off the line i would like to keep it there