AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Nissan - P0300 2009 Nissan Sentra

P0300 2009 Nissan Sentra Code - Cylinder Misfire Detected Random Cylinders

- Code Popularity: 10,502 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
By AutoCodes.com - Updated Jul 20, 2022
Share on Facebook   Share on Twitter   Share on Linkedin

|Code P0300 2009 Nissan Sentra 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

|How do I Fix the Code P0300 2009 Nissan Sentra?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Does your Nissan have Safety Recalls? → Check here

|Code P0300 2009 Nissan Sentra 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 common causes of multi-cylinder misfiring. If no leaks are found the next step is to replace the spark plugs. If the problem persists more tests need to be done to diagnose the problem, see "Possible Causes".

|What is the Cost to Diagnose the Code P0300 2009 Nissan Sentra?

Labor: 1.0

The cost of diagnosing the P0300 2009 Nissan Sentra code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code P0300 2009 Nissan Sentra Possible Symptoms?

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

|Code P0300 2009 Nissan Sentra 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. The Diagnostic Trouble Code (DTC) will be set when the Engine Control Module monitors the crankshaft speed and has detected a misfire condition

OBDII Code P0300 2009 Nissan Sentra - Cylinder Misfire Detected Random Cylinders - AutoCodes.com
P0300 2009 Nissan Sentra Code - Cylinder Misfire Detected Random Cylinders

|Need More Information on the P0300 2009 Nissan Sentra Code?

Need more information on how to fix the P0300 2009 Nissan Sentra code? Get Access to Factory Service Manuals

|Need Help with the P0300 2009 Nissan Sentra Code?

Get the P0300 2009 Nissan Sentra code diagnosed by a professional: Find a repair shop in your area

|Code P0300 2009 Nissan Sentra comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0300 2009 Nissan Sentra code? Have you replaced any parts?
Any information is appreciated. Thanks