[truckin 79]

I forgot I bought a cheap vacuum pump tester/bleeder from H Freight. I hooked it up to EGR and would no hold any vacuum. I did try vacuum pump on exhaust riser valve and that valve is good, held vacuum just fine. I do run constant manifold vacuum to exhaust valve riser though as I don't trust thermal vacuum switch to work correctly and open it up on time. I need to go to parts store to pick up a new EGR, I am hopeful this will cure my problem with emissions and acceleration.
Thanks