I can't remember - does your Borla exhaust have actual valves in it or simulators?
In case you weren't aware, "The valve actuators are calibrated at every Key-ON event. The PCM sends full open and full closed commands and checks actual against commanded position. If for any reason the calibration is unsuccessful , the actuators are self-diagnosing and report fault flags to the PCM."
So as soon as you start the car, the valves cycle. They also will cycle with the car off if you unplug and plug them back in (you will hear an electronic tone when you do). I believe after a minute or so (or sooner), if they haven't cycled properly upon start-up, you will get a CEL (check engine light). But since you said you drove it for a bit, and didn't get a CEL right away, it makes me wonder if maybe the valves are cycling properly, but perhaps getting hung up once things get hot in the pipes. I dunno.
You shouldn't have to clear codes after each drive, as that just indicates the problem is still there. I have installed aftermarket exhausts on almost all of my vehicles, (including the HC), and have never heard of a car throwing a CEL because it hasn't "learned" the exhaust.
In case you weren't aware, "The valve actuators are calibrated at every Key-ON event. The PCM sends full open and full closed commands and checks actual against commanded position. If for any reason the calibration is unsuccessful , the actuators are self-diagnosing and report fault flags to the PCM."
So as soon as you start the car, the valves cycle. They also will cycle with the car off if you unplug and plug them back in (you will hear an electronic tone when you do). I believe after a minute or so (or sooner), if they haven't cycled properly upon start-up, you will get a CEL (check engine light). But since you said you drove it for a bit, and didn't get a CEL right away, it makes me wonder if maybe the valves are cycling properly, but perhaps getting hung up once things get hot in the pipes. I dunno.
You shouldn't have to clear codes after each drive, as that just indicates the problem is still there. I have installed aftermarket exhausts on almost all of my vehicles, (including the HC), and have never heard of a car throwing a CEL because it hasn't "learned" the exhaust.
