P0090 INFINITI – High Pressure Fuel Pump Performance

P0090 INFINITI Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P0090 INFINITI Possible Causes

Fualty High Pressure Fuel Pump,Faulty Low Pressure Fuel Pump,High Pressure Fuel Pump harness is open or shorted,High Pressure Fuel Pump circuit poor electrical connection,Low Pressure Fuel Pump harness is open or shorted,Low Pressure Fuel Pump circuit poor electrical connection

P0090 INFINITI Description

The high pressure fuel pump is installed at the front of the engine bank 2 side and activated by the camshaft. Engine Control Module (ECM) controls the high pressure fuel pump control solenoid valve built into the high pressure fuel pump and adjusts the amount of discharge by changing the suction timing of the low pressure fuel.