The owner of this 2015 Chevy Sonic is beyond frustrated...
He just spent over $1000 to fix a low power complaint with codes P0016 and P0420.

After getting the car back from the shop with MANY new parts, it's STILL runs like garbage, and STILL setting the same two codes!!

Sounds like it's time for an actual DIAGNOSIS :)

IVAN'S PICO WAVEFORMS:
https://drive.google.com/drive/folder...

THINKTOOL PROS:
https://www.amazon.com/dp/B08XXWHQVJ?...

Enjoy!
Ivan