P0301 - CYLINDER 1 IGNITION FAILURE

DTC Code P0301 General Description

This P0301 OBD2 DTC code is a generic code for the Powertrain, so it applies to vehicles equipped with OBD-II. Basically, this code indicates that the vehicle's ECM (Engine Control Module) calculator has detected that one of the engine's cylinders is not working properly. In this case, it indicates that the fault is in cylinder #1.



Fault Code P0301 Common Symptoms

• There is a problem starting the engine.
  
  
• Unstable gait.
  
  
• The engine shakes and stalls quickly.
  
  
• Loss of power when accelerating the vehicle.
  
  
• Strong gasoline smell persists.
  
  
• Black smoke coming from the exhaust pipe.

Cause of OBD2 code P0301 Generic

P0301 OBD2 code may have one or more of the following problems.

• Defective spark plugs or wires.
  
  
• Problem coil.
  
  
• One or both oxygen sensors may be bad.
  
  
• Injector may be faulty.
  
  
• The exhaust valve is burned out.
  
  
• The three-dimensional catalytic converter is bad.
  
  
• Empty fuel tank.
  
  
• Poor compression.
  
  
• PCM (Power Control Module) calculator may be damaged.

Possible solutions for DTC code P0301 Generic

 

1 To solve the error code P0301 OBDII, you can check the following components.

• Check all cables and their connectors leading to the cylinder.
  
  
• Check that the spark plugs, cables, distributor cap, etc. are working properly.
  
  
• Maintain the spark plugs and cables and replace them if necessary.
  
  
• Check the coils.
  
  
• Check fuel injectors and vacuum clean with your choice of fuel injector cleaner.
  
  
• Check the mass air flow sensor.
  
  
• Check the EGR (exhaust gas recirculation) valve as it may be open or shorted.
  
  
• Check the compression in the engine and make sure no vacuum leaks are found.