Thank You!!! I was finally able to source a Bosch plastic housing replacement relay on eBay marketed as a VW part. It arrived on Tuesday, and I installed it today. I knew that was it when I turned the key and heard the hum of fuel pump. Once I added some fresh fuel to the tank, I turned the key, watched the fuel pressure gauge climb up to 36 PSIG, and the L28 started and ran! I do need to still do some troubleshooting and fix the backfiring and high idle, but those seem like much smaller challenges now that I have a running car again. Apologies to my neighbors, I think the whole community heard my hollers of joy and elation when the Z fired up this afternoon! A small victory, but a much-needed win for me today with all that has been going on at work.