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AutoCodes - Volkswagen - P0303 VOLKSWAGEN

P0303 VOLKSWAGEN Code - Cylinder 3 Misfire Detected

- Code Popularity: 93,007 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By - Updated Jun 13, 2022
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|P0303 VOLKSWAGEN code possible causes

  • Faulty spark plug 3
  • Clogged or faulty fuel injector 3
  • Faulty ignition coil 3
  • Fuel injector 3 harness is open or shorted
  • Fuel injector 3 circuit poor electrical connection
  • Ignition coil 3 harness is open or shorted
  • Ignition coil 3 circuit poor electrical connection
  • Insufficient cylinder 3 compression
  • Incorrect fuel pressure
  • Intake air leak

|How do I fix code P0303 VOLKSWAGEN code?

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.

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|P0303 VOLKSWAGEN code tech notes

The P0303 code means that the cylinder 3 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 3. If the problem persists more tests need to be done to diagnose the problem, see "Possible Causes".

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|Cost of diagnosing P0303 VOLKSWAGEN code

Labor: 1.0

The cost of diagnosing the P0303 VOLKSWAGEN 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.

|When is the P0303 VOLKSWAGEN code detected?

Engine Cylinder 3 is Misfiring.

|What are P0303 VOLKSWAGEN code possible symptoms?

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

|P0303 VOLKSWAGEN code 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 p0303 volkswagen - Cylinder 3 Misfire Detected -
P0303 VOLKSWAGEN Code - Cylinder 3 Misfire Detected

|Need more information with the P0303 VOLKSWAGEN code?

Need more information on how to fix the P0303 VOLKSWAGEN code? Get Access to Factory Service Manuals

|Need help with a P0303 VOLKSWAGEN code?

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|P0303 VOLKSWAGEN code comments

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