I hate to ask dumb questions but I have fuel delivery problem and need to test/monitor fuel pressure. ( I also have intermittent fuel pump outages but let's leave that for the moment).
See pic below of 95 D90 fuel rail. Where on this would you mount a gage to monitor fuel pressure? There is no schrader valve. Would/could a gage have to be cut into the fuel line somewhere between the fuel filter and fuel pressure regualtor?
Should I have a pressure port soldered into the rail?
Thanks in advance for advice. js