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  • P0300 OBD-II Fault Code, Random Misfire - Vauxhall
    misfire detection monitor is designed to monitor engine misfire and identify the specific cylinder in which the misfire has occurred but in this case it can t determine the specific cylinder or cyliners that are misfiring Process Synopsis Historically the most basic causes for misfires are lack of spark or an imbalanced fuel air mixture If the misfires seem random or non rhythmic the cause is more likely fuel If it seems like there is a consistent rhythmic occurrence then its more likely caused by lack of spark The same cylinder or cylinders are misfiring This consistent rhythm could also occur if the issue is caused by individual injectors Listen to the engine to see if you can determine if its missing in a pattern or more sporadically missing If its in a pattern you can eliminate many of the broad causes for misfire and focus more on those specific to individual cylinders or vice versa Likely Causes Ignition System Fault Affecting Two or More Cylinders Faulty Ignition coil spark plugs or Ignition wires Ignition Control IC circuit intermittently shorted to ground Erratic or Interrupted Camshaft Position CMP or Crankshaft Position CKP sensor Fuel Metering Affecting Two or More Cylinders Low Fuel less than 1 8 tank or out of fuel Fuel filter plugged dirty causing low fuel pressure Fuel pressure regulator leaking malfunctioning etc causing low or high fuel pressure Fuel pump weak check valve leaking etc causing low fuel pressure Check Fuel Pressure One or more leaking contaminated or sticking fuel injectors Blocks or reduces fuel flow Fuel supply line restricted Check for dents in metal tubing or kinks in rubber tubing Fuel Rail Pressure FRP sensor incorrect reading Fuel supply contaminated Evaporative Emission EVAP system or EVAP canister is full or saturated Air Leaks allow excess air into the Air Intake Positive Crankcase Ventilation PCV system leak valve stuck open etc Exhaust Gas Recirculation EGR valve stuck open or tube gasket or diaphragm leak Blocked Exhaust Gas Recirculation EGR passages Air Measurement Failure Mass Air Flow MAF or Air Flow Sensor AFS sensor contaminated damaged malfunctioning resulting in false air flow readings Faulty Manifold Absolute Pressure Sensor MAP Incorrect voltage from Heated Oxygen Sensors HO2S Base Engine Problem Mechanical problem effecting two or more cylinders broken rings leaking valves bent push rods etc Note On the first trip that the misfires are detected the Malfunction Indicator Lamp MIL will flash on and off On subsequent trips the light will remain illuminated Also Note if this is an Exhaust Gas Recirculation EGR issue one or more Exhaust Gas Recirculation EGR passages may be blocked or partially blocked If this is the case the Misfire Detection Monitor will indicate the Exhaust Gas Recirculation EGR port to check for possible blockage Site Instructions Please note the list of automobile manufacturers at the left edge of the screen The currently selected ODB code is for the Vauxhall family of autos The codes for any particular vehicle make and model will be

    Original URL path: http://upkeep.us/OBDII/OBD2/Vauxhall/piart.php?art=365 (2016-05-02)
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  • P0300 OBD-II Trouble Code, Random Misfire - Volvo
    detection monitor is designed to monitor engine misfire and identify the specific cylinder in which the misfire has occurred but in this case it can t determine the specific cylinder or cyliners that are misfiring Process Synopsis Historically the most basic causes for misfires are lack of spark or an imbalanced fuel air mixture If the misfires seem random or non rhythmic the cause is more likely fuel If it seems like there is a consistent rhythmic occurrence then its more likely caused by lack of spark The same cylinder or cylinders are misfiring This consistent rhythm could also occur if the issue is caused by individual injectors Listen to the engine to see if you can determine if its missing in a pattern or more sporadically missing If its in a pattern you can eliminate many of the broad causes for misfire and focus more on those specific to individual cylinders or vice versa Likely Causes Ignition System Fault Affecting Two or More Cylinders Faulty Ignition coil spark plugs or Ignition wires Ignition Control IC circuit intermittently shorted to ground Erratic or Interrupted Camshaft Position CMP or Crankshaft Position CKP sensor Fuel Metering Affecting Two or More Cylinders Low Fuel less than 1 8 tank or out of fuel Fuel filter plugged dirty causing low fuel pressure Fuel pressure regulator leaking malfunctioning etc causing low or high fuel pressure Fuel pump weak check valve leaking etc causing low fuel pressure Check Fuel Pressure One or more leaking contaminated or sticking fuel injectors Blocks or reduces fuel flow Fuel supply line restricted Check for dents in metal tubing or kinks in rubber tubing Fuel Rail Pressure FRP sensor incorrect reading Fuel supply contaminated Evaporative Emission EVAP system or EVAP canister is full or saturated Air Leaks allow excess air into the Air Intake Positive Crankcase Ventilation PCV system leak valve stuck open etc Exhaust Gas Recirculation EGR valve stuck open or tube gasket or diaphragm leak Blocked Exhaust Gas Recirculation EGR passages Air Measurement Failure Mass Air Flow MAF or Air Flow Sensor AFS sensor contaminated damaged malfunctioning resulting in false air flow readings Faulty Manifold Absolute Pressure Sensor MAP Incorrect voltage from Heated Oxygen Sensors HO2S Base Engine Problem Mechanical problem effecting two or more cylinders broken rings leaking valves bent push rods etc Note On the first trip that the misfires are detected the Malfunction Indicator Lamp MIL will flash on and off On subsequent trips the light will remain illuminated Also Note if this is an Exhaust Gas Recirculation EGR issue one or more Exhaust Gas Recirculation EGR passages may be blocked or partially blocked If this is the case the Misfire Detection Monitor will indicate the Exhaust Gas Recirculation EGR port to check for possible blockage Site Instructions Please note the list of automobile manufacturers at the left edge of the screen The currently selected ODB code is for the Volvo family of autos The codes for any particular vehicle make and model will be found

    Original URL path: http://upkeep.us/OBDII/OBD2/Volvo/piart.php?art=365 (2016-05-02)
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  • P0300 OBD-II Check Engine Code, Random Misfire - VW/Volkswagen
    misfire detection monitor is designed to monitor engine misfire and identify the specific cylinder in which the misfire has occurred but in this case it can t determine the specific cylinder or cyliners that are misfiring Process Synopsis Historically the most basic causes for misfires are lack of spark or an imbalanced fuel air mixture If the misfires seem random or non rhythmic the cause is more likely fuel If it seems like there is a consistent rhythmic occurrence then its more likely caused by lack of spark The same cylinder or cylinders are misfiring This consistent rhythm could also occur if the issue is caused by individual injectors Listen to the engine to see if you can determine if its missing in a pattern or more sporadically missing If its in a pattern you can eliminate many of the broad causes for misfire and focus more on those specific to individual cylinders or vice versa Likely Causes Ignition System Fault Affecting Two or More Cylinders Faulty Ignition coil spark plugs or Ignition wires Ignition Control IC circuit intermittently shorted to ground Erratic or Interrupted Camshaft Position CMP or Crankshaft Position CKP sensor Fuel Metering Affecting Two or More Cylinders Low Fuel less than 1 8 tank or out of fuel Fuel filter plugged dirty causing low fuel pressure Fuel pressure regulator leaking malfunctioning etc causing low or high fuel pressure Fuel pump weak check valve leaking etc causing low fuel pressure Check Fuel Pressure One or more leaking contaminated or sticking fuel injectors Blocks or reduces fuel flow Fuel supply line restricted Check for dents in metal tubing or kinks in rubber tubing Fuel Rail Pressure FRP sensor incorrect reading Fuel supply contaminated Evaporative Emission EVAP system or EVAP canister is full or saturated Air Leaks allow excess air into the Air Intake Positive Crankcase Ventilation PCV system leak valve stuck open etc Exhaust Gas Recirculation EGR valve stuck open or tube gasket or diaphragm leak Blocked Exhaust Gas Recirculation EGR passages Air Measurement Failure Mass Air Flow MAF or Air Flow Sensor AFS sensor contaminated damaged malfunctioning resulting in false air flow readings Faulty Manifold Absolute Pressure Sensor MAP Incorrect voltage from Heated Oxygen Sensors HO2S Base Engine Problem Mechanical problem effecting two or more cylinders broken rings leaking valves bent push rods etc Note On the first trip that the misfires are detected the Malfunction Indicator Lamp MIL will flash on and off On subsequent trips the light will remain illuminated Also Note if this is an Exhaust Gas Recirculation EGR issue one or more Exhaust Gas Recirculation EGR passages may be blocked or partially blocked If this is the case the Misfire Detection Monitor will indicate the Exhaust Gas Recirculation EGR port to check for possible blockage Site Instructions Please note the list of automobile manufacturers at the left edge of the screen The currently selected ODB code is for the VW Volkswagen family of autos The codes for any particular vehicle make and model will

    Original URL path: http://upkeep.us/OBDII/OBD2/VW/Volkswagen/piart.php?art=365 (2016-05-02)
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  • P0293 OBD-II Trouble Code, Injector Bal Cyl No.1 - GMC/General-Motors
    using sensors located throughout your car s engine drive train chassis body and network communication systems Some trouble codes indicate real problems with your vehicle and some indicate faulty sensors see Cause and Repair Info Below Note Site Instructions Below Trouble Code System Subsystem P0293 ASE Powertrain Fuel and Air Metering DTC Description Cylinder No 11 Contribution Balance Location Analysis Likely Cause Cylinder 11 Notes Site Instructions Please note the list of automobile manufacturers at the left edge of the screen The currently selected ODB code is for the GMC General Motors family of autos The codes for any particular vehicle make and model will be found under the manufacturer family i e Dodge and Plymouth are part of the Chrysler family of cars and trucks Also notice that just to the right of the manufacturer family list is a short group of OBD II codes The highlighted GMC General Motors OBDII code P0293 in this list is the currently selected code and the information on this page pertains to trouble code P0293 The other codes in the list above and below this code are OBD II codes some of which may be related to the current fault code and can be navigated to directly Need to look up additional OBD II Trouble Codes use the search box Enter the 5 character trouble codes in the search box and submit the search You can repeat the search as many times as you need one diagnostic code per search Don t assume a particular OBD2 code means the same for other auto manufacturers as there are many manufacturer specific codes in use If your trouble codes are for a different auto family select that vehicle series before searching for the diagnostic codes because not all OBD II codes used by one

    Original URL path: http://upkeep.us/OBDII/OBD2/GMC/General-Motors/piart.php?art=358 (2016-05-02)
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  • P0294 OBD-II Check Engine Code, Injector Circuit Cyl No.12 - GMC/General-Motors
    throughout your car s engine drive train chassis body and network communication systems Some fault codes indicate real problems with your vehicle and some indicate faulty sensors see Cause and Repair Info Below Note Site Instructions Below Trouble Code System Subsystem P0294 ASE Powertrain Fuel and Air Metering DTC Description Cylinder No 12 Injector Circuit Low Location Analysis Likely Cause cylinder 12 End of Range Circuit Lower Than Expected Notes Site Instructions Please note the list of automobile manufacturers at the left edge of the screen The currently selected ODB code is for the GMC General Motors family of autos The codes for any particular vehicle make and model will be found under the manufacturer family i e Dodge and Plymouth are part of the Chrysler family of cars and trucks Also notice that just to the right of the manufacturer family list is a short group of OBD II codes The highlighted GMC General Motors OBDII code P0294 in this list is the currently selected code and the information on this page pertains to fault code P0294 The other codes in the list above and below this code are OBD2 codes some of which may be related to the current trouble code and can be navigated to directly Need to look up additional OBD II Trouble Codes use the search box Enter the 5 character fault codes in the search box and submit the search You can repeat the search as many times as you need one diagnostics code per search Don t assume a particular OBD2 code means the same for other auto manufacturers as there are many manufacturer specific codes in use If your fault codes are for a different auto family select that vehicle series before searching for the diagnostics codes because not all OBD2 codes

    Original URL path: http://upkeep.us/OBDII/OBD2/GMC/General-Motors/piart.php?art=359 (2016-05-02)
    Open archived version from archive

  • P0295 OBD-II Fault Code, Injector Circuit Cyl No.12 - GMC/General-Motors
    throughout your car s engine drive train chassis body and network communication systems Some trouble codes indicate real problems with your vehicle and some indicate faulty sensors see Cause and Repair Info Below Note Site Instructions Below Trouble Code System Subsystem P0295 ASE Powertrain Fuel and Air Metering DTC Description Cylinder No 12 Injector Circuit High Location Analysis Likely Cause cylinder 12 End of Range Circuit Higher Than Expected Notes Site Instructions Please note the list of automobile manufacturers at the left edge of the screen The currently selected ODB code is for the GMC General Motors family of autos The codes for any particular vehicle make and model will be found under the manufacturer family i e Dodge and Plymouth are part of the Chrysler family of cars and trucks Also notice that just to the right of the manufacturer family list is a short group of OBD II codes The highlighted GMC General Motors OBDII code P0295 in this list is the currently selected code and the information on this page pertains to trouble code P0295 The other codes in the list above and below this code are OBD 2 codes some of which may be related to the current fault code and can be navigated to directly Need to look up additional OBD II Trouble Codes use the search box Enter the 5 character trouble codes in the search box and submit the search You can repeat the search as many times as you need one diagnosis code per search Don t assume a particular OBD2 code means the same for other auto manufacturers as there are many manufacturer specific codes in use If your trouble codes are for a different auto family select that vehicle series before searching for the diagnosis codes because not all OBD

    Original URL path: http://upkeep.us/OBDII/OBD2/GMC/General-Motors/piart.php?art=360 (2016-05-02)
    Open archived version from archive

  • P0296 OBD-II Trouble Code, Injector Bal Cyl No.1 - GMC/General-Motors
    using sensors located throughout your car s engine drive train chassis body and network communication systems Some fault codes indicate real problems with your vehicle and some indicate faulty sensors see Cause and Repair Info Below Note Site Instructions Below Trouble Code System Subsystem P0296 ASE Powertrain Fuel and Air Metering DTC Description Cylinder No 12 Contribution Balance Location Analysis Likely Cause cylinder 12 Notes Site Instructions Please note the list of automobile manufacturers at the left edge of the screen The currently selected ODB code is for the GMC General Motors family of autos The codes for any particular vehicle make and model will be found under the manufacturer family i e Dodge and Plymouth are part of the Chrysler family of cars and trucks Also notice that just to the right of the manufacturer family list is a short group of OBD II codes The highlighted GMC General Motors OBDII code P0296 in this list is the currently selected code and the information on this page pertains to fault code P0296 The other codes in the list above and below this code are OBD codes some of which may be related to the current trouble code and can be navigated to directly Need to look up additional OBD II Trouble Codes use the search box Enter the 5 character fault codes in the search box and submit the search You can repeat the search as many times as you need one diagnostic code per search Don t assume a particular OBD2 code means the same for other auto manufacturers as there are many manufacturer specific codes in use If your fault codes are for a different auto family select that vehicle series before searching for the diagnostic codes because not all OBD codes used by one manufacture are

    Original URL path: http://upkeep.us/OBDII/OBD2/GMC/General-Motors/piart.php?art=361 (2016-05-02)
    Open archived version from archive

  • P0297 OBD-II Engine Code, Vehicle Overspeed - GMC/General-Motors
    using sensors located throughout your car s engine drive train chassis body and network communication systems Some trouble codes indicate real problems with your vehicle and some indicate faulty sensors see Cause and Repair Info Below Note Site Instructions Below Trouble Code System Subsystem P0297 ASE Powertrain Fuel and Air Metering DTC Description Vehicle Overspeed Condition Location Analysis Likely Cause Notes Site Instructions Please note the list of automobile manufacturers at the left edge of the screen The currently selected ODB code is for the GMC General Motors family of autos The codes for any particular vehicle make and model will be found under the manufacturer family i e Dodge and Plymouth are part of the Chrysler family of cars and trucks Also notice that just to the right of the manufacturer family list is a short group of OBD II codes The highlighted GMC General Motors OBDII code P0297 in this list is the currently selected code and the information on this page pertains to trouble code P0297 The other codes in the list above and below this code are OBDII codes some of which may be related to the current fault code and can be navigated to directly Need to look up additional OBD II Trouble Codes use the search box Enter the 5 character trouble codes in the search box and submit the search You can repeat the search as many times as you need one diagnostics code per search Don t assume a particular OBD2 code means the same for other auto manufacturers as there are many manufacturer specific codes in use If your trouble codes are for a different auto family select that vehicle series before searching for the diagnostics codes because not all OBDII codes used by one manufacture are used by the other

    Original URL path: http://upkeep.us/OBDII/OBD2/GMC/General-Motors/piart.php?art=362 (2016-05-02)
    Open archived version from archive