Hey robe, I have a Hyundai 30l-7m. It is a no start condition. Has a lot of fuel pressure leaving the regulator going to the epr. I just replaced the regulator but that didn't fix the issue.

I pulled codes and there is many codes. 6420, 1173, 1644, 2123, 1626, 6530, 1611. Not sure if you have a fault code list or any ideas why I'm getting high fuel pressure. Thanks

Any help would be appreciated. Thanks!