93 Blazer rough idle in drive Code 32

Ok, have a 93 Blazer that runs ok on the highway but when you go to a stop sign it dies. Advanced ran the codes and it had a code 32 (EGR).
4.3 vortec - W

Recent Service:
Plugs, wires, Dist Cap, Roter - 2 days ago
Spider assy and nut kit - 10,000 miles ago

The reason we just did the tune up was it was hard to start, took two or three cranks before it started.
We did the tune up and it seemed to fix that problem, drove it 250 miles this morning and now this.

Any help would be apreciated.

Ok, have a 93 Blazer that runs ok on the highway but when you go to a stop sign it dies. Advanced ran the codes and it had a code 32 (EGR).
4.3 vortec - W

Recent Service:
Plugs, wires, Dist Cap, Roter - 2 days ago
Spider assy and nut kit - 10,000 miles ago

The reason we just did the tune up was it was hard to start, took two or three cranks before it started.
We did the tune up and it seemed to fix that problem, drove it 250 miles this morning and now this.

Any help would be apreciated.

Electronic egr valve?
If so remove and check for carbon ball under egr valve pintle.

Like MT2500 says..the EGR valve is at the front of the motor mounted under the throttle butterfly. Remove the intake air ductwork and air filter box.
It's the black device held on with 2 bolts, 10mm socket.
After removing, see if the little plug valve is being held up off the seat because of a chunk of carbon or if it's just stuck open. I work mine open & closed until it stays on the seat on it's own. I think Eric got his screened gasket from Autozone to keep the carbon chunks from hanging the plug valve open again.

actualy I got mine at NAPA, but I think everyone has it now. even the dealerships are recommending and selling one.