My luck strikes again

[Styrofoam04]

The check engine light began flashing when I first knoticed the problem When I accelerated hard on Saturday. It was on for about 20 secs. It hasn't turned on since.

No i dont have a code reader.

[Slope]

Moral of the story: don't clean your engine bay and just leave your hood closed at show-n-shines.

Like.

[Styrofoam04]

So I got the car back from the mechanic. the brake fluid done, oil change and the new belt put on. I asked him to check the noise at 3000rpms. he said he didn't notice anything.

But I'm still hearing the sound. So this time I had the windows down and drove near some walls and it definitely there, Im not crazy!

But it sound like vibrations, prolly the exhaust?

[Frankie]

Could be an exhaust heat shield come loose?
Tends to happen from rust over time.

[Styrofoam04]

Will it effect track day? anything I could do tonight?