Hi Nick. R56 base that seems to get 10.9 volts to the fuel pump while cranking and jumps to 12 when starter stops before returning to zero. Fuel pressure reaches 50 psi over 30 seconds of cranking and drops to zero inside a minute. Engine never starts even upon reaching 50 psi. Could a faulty check valve or other leak still be causing a complete no-start condition even with proper pressure or is it likely I have other problems going on?
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MINI Cooper R56 Fuel Pump Testing (2007-2011) | Pelican Parts DIY Maintenance Article