I'm hoping that p2457 fault code I'm having is just because of the carbon build up and the thermostat.

Frustrated that it was Sunday night no where to buy a cross cut chisel and desperate to remove the gasket. I ended up improvising my own cross cut chisel using screw drivers I got free from harbor freight and a random bench grinder I got from harbor freight as well years back because it was on sale plus coupon. Coz you'll never know you need one lol



Pic of the egr. Valve after brushing and spraying with a $1.99 carburetor cleaner.