P0090 Volkswagen Fuel Pressure Regulator Control Circuit
Possible causes
– Faulty fuel pressure sensor
– Fuel pressure sensor harness is open or shorted
– Fuel pressure sensor electrical circuit poor connection
– Faulty Engine Control Module (ECM)
– Fuel pressure sensor harness is open or shorted
– Fuel pressure sensor electrical circuit poor connection
– Faulty Engine Control Module (ECM)
What about the obd code?
If the current is outside of the expected range, DTC P0090 Volkswagen will set.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0090 Volkswagen Description
The Engine Control Module (ECM) supplies power and ground to the Fuel Rail Pressure (FRP) regulator. The ECM monitors current on the circuits to detect a failure.
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