July 20, 2011I have an ATI procharger PSc1. I`m not throwing any codes, no check engine light and I passed last year. I haven`t done anything new yet. I get a failure in the EGR and Evaporating unit on the inspection test station. I put 12 volts on the egr valve and it opens and closes every time. I have a Diablo super chip and maybe it`s blocking the codes but it passed last year with the same setup. Any gear heads with some thoughts?