GREAT NEWS!

New volume control regulator and hose fixed my problem! I can now accelerate smoothly without feeling like I'm tapping the pedal.

BAD NEWS
P0001 code came up...I reset it, I feel like it comes up every few miles. Car is not my daily driver so I'm garaging it till the weekend when I can poke around. If anyone has any advice please feel free to message me. If someone can point me towards where the fuel volume regulator is, that would be great lol.

 

Glad to hear the surge is gone with the new turbo regulator and hose haha. As for the code, I have no idea what that could be. Hopefully somebody on here can help you out!

 

Reverse the modifications and take it to a dealer

 

So when the CEL came back. I reset it. Reset my trip odometer. CEL came back in 14 miles. This seems about right as it came back after short drives.

This time instead of resetting the CEL, I reflashed back to the stock tune. 18 miles later, no CEL. I have an appointment to do an oil change at a well known independent Lexus repair shop for an oil change, so I'll have them check things out while I'm there.

 

CEL Gone. Back to normal operating procedures