New Owner. Anyone else had this issue?

[TN1.4T]

Anyone else noticed a bit of hesitation after pushing the car hard a little bit, and then cruising at a constant speed (like having to pull hard on an on-ramp)? This is the 1.4T, and it almost feels like a slight miss. The car still has plenty of power if you mash the gas, but if you keep it steady, it will "miss" for about 3-4 miles and then it goes away. No CEL, and until I get my Ultragauge I've got no way to tell what else is going on (boost pressure/fuel mixture/etc.). Any help would be greatly appreciated.

 

[RMIRANDA9]

Well, this car goes at almost 14 psi. I scanned and that the turbo input.

Welcome !!

 

[rsSteve]

Welcome to the forums! If you are running 87 octane (regular) step it up to 93. I myself and many others have had weird little issues while driving which were elevated once going to premium gas. My sonic runs much smoother now after making the swap.

 

[Anarkii]

Highest i've seen on a stock RS auto transmission is 14 PSi going up a hill running 98 octane.