Having a problem with a 2014 chevy 1500 with a 5.3L whipple charger everything else is stock.
the complaint from the customer is a 20- 30 kpa surge at 3k rpm. I've included the tune and the log.
If you watch the throttle input (APP) when this happens, its not my foot twitching! its doing it all on its own.
Its happing above 85kpa, it might fluctuate down to 70 kpa and around 105kpa. We are at 4800ft so anything over
83 kpa is pressure.