Originally Posted by
98Birdman
New to tuning and am going through the tune on my TA because it is having a few issues. The car had a bad throttle body and the tuner was having a hell of a time getting it straight. Replaced the throttle body and decided I was going to teach myself tuning since I daily a G8 GT and am doing an 8.1L swap into my 95 Burb.
Anyway, my car is a 98 TA with a mild 6.0L LQ9 swapped in, Futral F13 112cl cam, all that good stuff. I have deleted the EVAP system and the car is now returnless. I was looking at the tune and it has a straight line for the flow rate. I read that a sloped flow rate is for returnless systems and a straight line is for returned systems, but not sure what it should be for my car as a converted one.