Possible causes

– Faulty fuel pressure sensor
– Faulty fuel pump
– Fuel pressure sensor harness is open or shorted
– Fuel pressure sensor electrical circuit poor connection
– Blocked fuel filter
– Fuel line restricted
– Faulty fuel pressure regulator

When is the code detected?

The Engine Control Module (ECM) has determined that the fuel rail pressure is too low for a specific engine RPM

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

AUDI Technical Service Bulletins for P0087 code