Post by
loystock »
https://forums.nicoclub.com/loystock-u10145.html
Sat Oct 29, 2011 11:11 pm
With Ignition switch to ON, the fuel pump will run for @ 5 seconds and then shut off. So if you leave it ON for a few seconds before starting, it allows the fuel pump to prime the fuel line, improving the chance of successful start. So "max" is right to check the fuel pressure - @ 43 PSI with Ignition ON, engine OFF and 38PSI with engine running. If you haven't replaced the fuel filter (besides brake booster), then it's likely the culprit.