i.....am.......confused......

[yaris-one]

so i get the front sway bar, ordering the rear soon, i install it, and no troubles
drive the car to work, fine, handles a little better, i like it so far

on my way home i take a left turn at a decently high speed, im not drifting or anything, just hugging the corner a little. well my check engine light starts blinking, so i back of the throttle, turn my music off and listen, it stops blinking and stays off....i pop the hood take a look, everything looks fine.

next day, same corner, same speed, same blinking, but this time it stays on, get home, turn car off, pop hood, nothing seems wrong, check fluids and electrical connections, all good, check engine light still on..........suggestions
im going to call a repair shop on monday, but id like to try and figure the problem myself before i have to drop a bunch of cash, its very frustrating when i go to work, fix multimillion dollar aircraft and my yaris confuses me...lol