CC260E I did not have the tools to check the fuel pressure. I changed the regulator without checking the pressure. I was quoting a book about Bosch fuel injection LH jetronic. That is why I said generic. There is a nipple with Shrader valve (sp) (similar to tire valve) and cap on the fuel rail of M119 engine that is the place to check the pressure. Since that would be the same pressure that the fuel injectors see.
I wonder where Carman850 tested his pressure and what equipment he used.