Volvo Fuel Pressure Adjustment Needed
This bulletin applies to all 2014-2015 Volvo models. The check engine light may be on. If diagnostic trouble codes (DTCs) stored in the engine control module (ECM) include P018D00 and P018C00 (both permanent), replace the low side fuel pressure sensor, according to VIDA.
Not that the low-side fuel pressure sensor is not on the fuel injector rail. It is the sensor located between the fuel tank and the high-pressure injection pump.