Engine-Codes
 
OBDII Code List
 
P0300 CHEVROLET

P0300 CHEVROLET - Cylinder Misfire Detected Random Cylinders

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

Possible causes

  • Faulty spark plug (s)
  • Faulty ignition coil (s)
  • Clogged or faulty fuel injector (s)
  • Intake air leak
  • Fuel injectors harness is open or shorted
  • Fuel Injectors circuit poor electrical connection
  • Ignition coils harness is open or shorted
  • Ignition coils circuit poor electrical connection
  • Insufficient cylinders compression
  • Incorrect fuel pressure
  • Tech notes

    The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are a common caused of multi-cylinder misfiring. If no leak is found the next step is to replace the spark plugs. If the problem persists more tests needs to be done to diagnose the problem, see "Possible Causes".

    There are factory service bulletins for the following Chevrolet models:

    2000 Chevrolet S-10
    2000-2008 Chevrolet Camaro
    2000-2008 Chevrolet Lumina
    2000-2008 Chevrolet Cavalier
    2000-2003 Chevrolet Impala
    2000-2003 Chevrolet Malibu
    2000-2003 Chevrolet Monte Carlo
    2000-2003 Chevrolet Silverado
    2000-2003 Chevrolet Suburban
    2000-2003 Chevrolet Tahoe
    2000-2003 Chevrolet Venture
    2001-2008 Chevrolet Express
    2002-2008 Chevrolet Astro
    2000-2003 Chevrolet Avalanche
    2000-2003 Chevrolet Trailblazer
    2003-2008 Chevrolet Blazer
    2003-2008 Chevrolet S-10
    2003-2008 Chevrolet Trailblazer EXT
    2000-2008 Chevrolet Factory Service Bulletin OBDII Code P0300

    2014 Chevrolet Silverado 1500
    2014-2016 Chevrolet Corvette
    2015-2016 Chevrolet Silverado, Suburban, Tahoe
    2016 Chevrolet Camaro
    Chevrolet Factory Service Bulletin OBDII Code P0300


    2002 Chevrolet Blazer P0300 Misfire Diagnostics





    User Submitted Video

    When is the code detected?

    The control module monitors the crankshaft speed and has detected a misfire condition

    Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/loss of power
  • Hard start
  • Engine hesitation
  • P0300 Chevrolet Description

    When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position (CKP) sensor signal to vary, the Engine Control Module (ECM) can determine that a misfire is occurring.
    OBDII Code P0300 Chevrolet - Cylinder Misfire Detected Random Cylinders - Engine-Codes.com

    P0300 Chevrolet Information for specific Chevrolet models

  • P0300 2002 CHEVROLET TRAIL BLAZER   
  • Related Information

    Repair Importance Level: 3
     
    1=Low 2=Medium 3=High  
    Repair Difficulty Level: 3
     
    1=Easy 2=Moderate 3=Hard  

    Browse All Codes For Specific Model Year

    Ford F150 1998 Ford F150
    1999 Ford F150
    2000 Ford F150
    2001 Ford F150
    2002 Ford F150
    2003 Ford F150
    Ford Fusion 2006 Ford Fusion
    2007 Ford Fusion
    2008 Ford Fusion
    2009 Ford Fusion
    2010 Ford Fusion
    2011 Ford Fusion
    2012 Ford Fusion
    Honda Accord 2008 Honda Accord
    2009 Honda Accord
    2010 Honda Accord
    Honda Civic 1996 Honda Civic
    1997 Honda Civic
    1998 Honda Civic
    1999 Honda Civic
    2000 Honda Civic
    Infiniti G35 2003 Infiniti G35
    2004 Infiniti G35
    2005 Infiniti G35
    2006 Infiniti G35
    Nissan Altima 2002 Nissan Altima
    2003 Nissan Altima
    2004 Nissan Altima
    2005 Nissan Altima
    2006 Nissan Altima
    2008 Nissan Altima
    2009 Nissan Altima
    2010 Nissan Altima
    2011 Nissan Altima
    2012 Nissan Altima
    Nissan Maxima 2005 Nissan Maxima
    2006 Nissan Maxima
    2007 Nissan Maxima
    2008 Nissan Maxima
    Nissan Pathfinder 2005 Nissan Pathfinder
    2006 Nissan Pathfinder
    2007 Nissan Pathfinder
    2008 Nissan Pathfinder
    2009 Nissan Pathfinder
    2010 Nissan Pathfinder
    2011 Nissan Pathfinder
    2012 Nissan Pathfinder
    Nissan Rogue 2008 Nissan Rogue
    2009 Nissan Rogue
    2010 Nissan Rogue
    2011 Nissan Rogue
    2012 Nissan Rogue
    2013 Nissan Rogue
    Nissan Sentra 2002 Nissan Sentra
    2003 Nissan Sentra
    2004 Nissan Sentra
    2005 Nissan Sentra
    2006 Nissan Sentra
    2007 Nissan Sentra
    2008 Nissan Sentra
    2009 Nissan Sentra
    2010 Nissan Sentra
    2011 Nissan Sentra
    2012 Nissan Sentra
    Toyota Camry 1997 Toyota Camry
    1998 Toyota Camry
    1999 Toyota Camry
    2000 Toyota Camry
    2001 Toyota Camry
    2006 Toyota Camry
    2007 Toyota Camry
    2008 Toyota Camry
    2009 Toyota Camry
    2010 Toyota Camry
    2011 Toyota Camry
    Toyota Corolla 2005 Toyota Corolla
    Toyota Highlander 2001 Toyota Highlander
    2002 Toyota Highlander
    2003 Toyota Highlander
    2004 Toyota Highlander
    2005 Toyota Highlander
    2006 Toyota Highlander
    2007 Toyota Highlander
    Toyota Prius 2004 Toyota Prius
    2005 Toyota Prius
    2006 Toyota Prius
    2007 Toyota Prius
    2008 Toyota Prius
    2009 Toyota Prius
    Scion xB 2005 Scion xB
    2006 Scion xB
    2007 Scion xB