So recently I've noticed there is like a turbo spool sound SOMETIMES when going from 2nd to 3rd (at a low RPM)
Has anyone else experiences this? With a 2019, or a 2020. I didn't notice it until after I did the tune. I also got a blinking engine light on the highway. It was like the car was stuck in between gears. It stopped blinking and stayed solid, it went away after I cycled the car on and off. (this was a few weeks ago, no check engine since)

Really looking for some insight here. First time I tuned a car. Using Renntech HHT.

Thanks to all who take the time to reply.

did you check for codes ? contact renntech....

I did not. Like I said it went away and hasn't came back since. Although, like I said, between 2nd & 3rd gear (SOMETIMES) there is a weird turbo spool sound. Car runs fine (I guess) but just has me nervous. That's why I'd like to see if primarily the "turbo spool" sound is normal, and if others have experienced it.

Thanks for your reply.

I hear the turbo spool on mine once in a while when driving very lightly. When I'm on the hammer, exhaust sound drowns out everything. For your CEL, you need to pull the code to really be able to start diagnosing. However, I do notice that whenever the small coolant reservoir that sits in front and between the intake is a little low, there would be a CEL after hard accelerations but would go away after 3 or 4 start cycles. Just need to keep that filled.

Same very lightly i can hear it occasionally, when my wife pulls away i can always hear a little turbo spool... it's funny when i first bought it the neighbors where checking it out... wifey pulls off and they all look at me ? turbo ? yes, 2... in unison when can we go for a ride LOL

Just bolt on some blow off valves and you won't hear it...lol...

https://www.weistec.com/m177-vta-adapter-system.html