1992 Other Suzuki Models EGR valve

My engine keeps dying. The pickup coil was replaced twice. Mechanics at a loss as to why pickup coil died twice, but reset timing on it. Told me to drive and see how it drives. Car engine light came on last night. Then car started to lose power. Quickly got off at exit, and car died as I went around corner. Lucky coasted into parking space. Waited 5 min. Car started again. Check engine light still on. Took back to mechanic expecting pickup coil again. But told "good news" now it's the EGR vacuum selenoid valve. But that's not so good to hear. Now I have two problems. Can an EGR valve cause a car to die while driving? Why would a pick-up coil keep being burnt out? And could changing the timing solve the problem for the pick-up coil? Thanks for your feedback:)