Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
HONDA
Reported code forms P0304
SERVICE BULLETIN - WARRANTY EXTENSION: MIL COMES ON WITH DTCS P0301 THRU P0304 - THE PISTON RINGS ON CERTAIN CYLINDERS MAY ROTATE AND ALIGN, WHICH CAN LEAD TO SPARK PLUG FOULING. THIS CAN SET DTCS P0301 NO. 1 CYLINDER…
HONDA
Reported code forms P0304
SERVICE BULLETIN - WARRANTY EXTENSION: MIL COMES ON WITH DTCS P0301 THRU P0304 - THE PISTON RINGS ON CERTAIN CYLINDERS MAY ROTATE AND ALIGN WHICH CAN LEAD TO SPARK PLUG FOULING. THIS CAN SET DTCS P0301 NO. 1 CYLINDER…
HONDA
Reported code forms P0304
SERVICE BULLETIN - WARRANTY EXTENSION: MIL COMES ON WITH DTCS P0301 THRU P0304 - THE PISTON RINGS ON CERTAIN CYLINDERS MAY ROTATE AND ALIGN, WHICH CAN LEAD TO SPARK PLUG FOULING. THIS CAN SET DTCS P0301 NO. 1 CYLINDER…
HONDA
Reported code forms P0304
SERVICE BULLETIN - WARRANTY EXTENSION: MIL COMES ON WITH DTCS P0301 THRU P0304 - THE PISTON RINGS ON CERTAIN CYLINDERS MAY ROTATE AND ALIGN WHICH CAN LEAD TO SPARK PLUG FOULING. THIS CAN SET DTCS P0301 NO. 1 CYLINDER…
HONDA
Reported code forms P0304
"SERVICE BULLETIN - AMERICAN HONDA IS ANNOUNCING A POWERTRAIN WARRANTY EXTENSION AS A RESULT OF A SETTLEMENT OF A CLASS ACTION CAPTIONED, SOTO ET AL.V. AMERICAN HONDA MOTOR CO., INC., CASE NO. 3:12-CV-1377-SI (N.D.…
HONDA
Reported code forms P0304
SERVICE BULLETIN - WARRANTY EXTENSION: MIL COMES ON WITH DTCS P0301 THRU P0304 - THE PISTON RINGS ON CERTAIN CYLINDERS MAY ROTATE AND ALIGN, WHICH CAN LEAD TO SPARK PLUG FOULING. THIS CAN SET DTCS P0301 NO. 1 CYLINDER…
RAM
Reported code forms P0304
MIL Illuminates On Rough Roads This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination while driving on…
MAZDA
Reported code forms P0304:00
SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0300:00, P0301:00, P0302:00, P0303:00 AND/OR P0304:00 STORED IN MEMORY. • P0300:00: RANDOM MISFIRE DETECTED • P0301:00: CYLINDER NO.1 MISFIRE DETECTED •…
LAND ROVER
Reported code forms P0304
"SITUATION: ENGINE INSTABILITY MAY BE EXPERIENCED. THE MALFUNCTION INDICATOR LAMP (MIL) WILL BE DISPLAYED AND DIAGNOSTIC TROUBLE CODES (DTC) P0301, P0302, P0303, P0304, AND/OR P0315 MAY BE STORED IN THE ENGINE CONTROL…
MAZDA
Reported code forms P0304:00
SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0300:00, P0301:00, P0302:00, P0303:00 AND/OR P0304:00 STORED IN MEMORY AND ACCOMPANIED WITH AN INCREASED ENGINE OIL LEVEL. P0300:00: RANDOM MISFIRE…
CHEVROLET
Reported code forms P0304
This Preliminary Information communication provides information to the technician about vehicles that had the Customer Satisfaction Program 15169A and now there is a Service Engine Soon Malfunction Indicator Lamp on.…
LAND ROVER
Reported code forms P0304
"SITUATION: ENGINE INSTABILITY MAY BE EXPERIENCED. THE MALFUNCTION INDICATOR LAMP (MIL) WILL BE DISPLAYED AND DIAGNOSTIC TROUBLE CODES (DTC) P0301, P0302, P0303, P0304, AND/OR P0315 MAY BE STORED IN THE ENGINE CONTROL…
LAND ROVER
Reported code forms P0304
"SITUATION: THE ENGINE MALFUNCTION INDICATOR LAMP (MIL) MAY BE ILLUMINATED WITH DIAGNOSTIC TROUBLE CODES (DTC) P00C6 AND P228D-00 OR P228C-77 STORED IN THE ENGINE CONTROL MODULE (ECM). ADDITIONALLY, THE ENGINE MAY…
MAZDA
Reported code forms P0304:00
SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0300:00, P0301:00, P0302:00, P0303:00 AND/OR P0304:00 STORED IN MEMORY AND ACCOMPANIED WITH AN INCREASED ENGINE OIL LEVEL. P0300:00: RANDOM MISFIRE…
JAGUAR
Reported code forms P0304
"SITUATION: THE ENGINE MALFUNCTION INDICATOR LAMP (MIL) MAY BE ILLUMINATED WITH DIAGNOSTIC TROUBLE CODES (DTC) P00C6 AND P228D-00 OR P228C-77 STORED IN THE ENGINE CONTROL MODULE (ECM). ADDITIONALLY, THE ENGINE MAY…
HONDA
Reported code forms P0304
Service bulletin - The piston rings on certain cylinders may rotate and align which can lead to spark plug fouling. This can set DTCs P0301 through P0304 and cause the MIL to come on.
CHRYSLER, DODGE, JEEP
Reported code forms P0304
MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) This bulletin involves checking for excessive cylinder leakage and replacing the cylinder head if necessary. Customers may experience a Malfunction…
CHRYSLER, DODGE, JEEP
Reported code forms P0304
MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) This bulletin involves checking for excessive cylinder leakage and replacing the cylinder head if necessary. Customers may experience a Malfunction…
CHRYSLER, DODGE, JEEP
Reported code forms P0304
MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) This bulletin involves checking for excessive cylinder leakage and replacing the cylinder head if necessary. Customers may experience a Malfunction…
MAZDA
Reported code forms P0304:00
SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0300:00, P0301:00, P0302:00, P0303:00 AND/OR P0304:00 STORED IN MEMORY AND ACCOMPANIED WITH AN INCREASED ENGINE OIL LEVEL.P0300:00: RANDOM MISFIRE…
HYUNDAI
Reported code forms P0304
HYUNDAI 2010-2011 MY TUCSON 2.4L: PROVIDED INFORMATION REGARDING THE ECM SOFTWARE UPDATE. CHECK ENGINE LIGHT SHOWS WITH CERTAIN DTC'S : P0300-P0304. *LJ
VOLKSWAGEN
Reported code forms P0304
MIL ON, DTCs P0300, P0302, P0304 or P0306 Stored in ECM Fault Memory
VOLKSWAGEN
Reported code forms P0304
MIL ON, DTCs P0300, P0302, P0304 or P0306 Stored in ECM Fault Memory
MERCEDES-BENZ
Reported code forms P030400
Check Engine Light (CEL) on, DTC code for misfire (cylinder 1 or 4 - P030100, P030400) in M271 EVO ME engine control module
TOYOTA
Reported code forms P0304
Tech Tip: Some customers may experience a Knocking sound and/or Runs Rough on engine start following a cold soak. This may or may not occur with DTC(s) P0300, P0301, P0302, P0303 and / or P0304.
BUICK, CADILLAC, CHEVROLET, GMC, PONTIAC, SATURN
Reported code forms P0304
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…
CHRYSLER, DODGE, JEEP
Reported code forms P0304
MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension)
CHRYSLER, DODGE, JEEP
Reported code forms P0304
MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) This bulletin involves checking for excessive cylinder leakage and replacing the cylinder head if necessary. Customers may experience a Malfunction…
LEXUS
Reported code forms P0304
Tech Tip: Some IS250 and GS300 vehicles may exhibit one or more of the following conditions: MIL "ON" DTC P0300, P0301, P0302, P0303, P0304, P0305, and/or P0306. Intermittently runs rough after coming to a stop with the…
FORD
Reported code forms P0304
FORD: VARIOUS MISFIRE SYSTEMS FROM TURBOCHARGE DIRECT INJECTION (GTDI)ENGINES HAVE STORED DIAGNOSTIC TROUBLE CODES (DTCS) IN POWERTRAIN CONTROL MODULE P0300, P0301, P0302, P0303, P0304, P0305, P0306. *PE