So you didn't take it off (like you said)...you
disabled it.
There's a difference. BIG bifference.
I started a car with the EGR valve off one time. It was...interesting...and loud.
I also started a '68 Chevy's 396 with no carb on it....ever hear a big block turn about 9000 RPM with no intake restriction?

...pretty scary...dumb idea...