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DTC - Diagnostic Trouble Codes information

P0089

Powertrain Codes

P0089 - VOLKSWAGEN - Fuel Pressure Regulator 1 Performance

Symptoms

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

Possible Causes

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

Description

The Engine Control Module (ECM) uses commanded fuel pump flow to determine a desired fuel rail pressure. The actual fuel pressure is monitored using the Fuel Rail Pressure (FRP) Sensor.