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P0304 on the 2008 Saturn Aura

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

Bulletins for this model year that name P0304
PIP3333C2018-05-07. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent engine misfire and a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0300, P0301, and/or P0304. Technician will need to follow published Service Information diagnostics first. If the Service Information diagnostics do not isolate a cause for this concern, inspect the inside of the fuel rail and/or fuel tank for fuel contamination. f fuel contamination is present, refer to the "Fuel System Cleaning" procedure in Service Information. Dealer will need to advise the customer to only use fuel from high quality high volume Top Tier fuel stations.
08-06-04-0252008-07-16. Service bulletin. LAT, BAS, ENGINE RUNS ROUGH WHEN COLD, MISFIRE, MIL/SES LIGHT ILLUMINATED, DTCS P0300, P0301, P0302, P0303, P0304 (REPLACE ALL FOUR FUEL INJECTORS). *PE
08-08-04-0252008-07-11. Service bulletin. LAT, BAS, ENGINE RUNS ROUGH COLD, MISFIRE, MIL/SES LIGHT ILLUMINATED, DTC'S P0300, P0301, P0303, P0304 (REPLACE ALL FOUR FUEL INJECTORS). MODELS AFFECTED: 2007-2008 SATURN AURA HYBRID, 2008 VUE WITH 2.4L I-4 CYLINDER ENGINE (VIN'S 5, Z - RPO LAT) BUILT PRIOR TO 12/01/07. *NJ

3 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.