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Home/Cars/Volkswagen/Golf/MK7 (2015-2019)/my Volkswagen Golf MK6 (2009-2014) has a check engine light with code P0302, what does that mean?

my Volkswagen Golf MK6 (2009-2014) has a check engine light with code P0302, what does that mean?

Volkswagen Golf MK7 (2015-2019)

Severity: mediumDifficulty: mediumError Code: P03022-4 hours
3 min read
499 words

Problem Statement

Learn how to diagnose and fix P0302 cylinder 2 misfire in Volkswagen Golf MK6. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0302
Component
Engine
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical components.
  • ⚠Allow the engine to cool before removing any components to prevent burns.

Symptoms

  • •Check engine light illuminated
  • •Rough idle or engine vibration
  • •Decreased acceleration or power
  • •Increased fuel consumption
  • •Engine stalling or hesitation during acceleration

Diagnostic Steps

  1. 1Scan for error codes using an OBD-II scanner to confirm P0302.
  2. 2Inspect spark plugs and ignition coils for damage or wear.
  3. 3Check for vacuum leaks around the intake manifold and hoses.
  4. 4Perform a compression test on cylinder 2 to assess engine health.
  5. 5Examine fuel injector functionality for cylinder 2.
  6. 6Inspect wiring and connectors leading to the ignition coil and injector.

Solution

Solution

1. Preparation

  • Gather tools and materials.
  • Disconnect the negative battery terminal to prevent electrical shorts.
  • Allow the engine to cool if it has recently been running.

2. Inspect and Replace Spark Plug

  • Tools Required: Socket set, torque wrench.
  • Remove the ignition coil cover if necessary.
  • Disconnect the ignition coil connector and remove the coil.
  • Remove the spark plug using a spark plug socket.
  • Inspect the spark plug for signs of wear or damage; replace if necessary.
  • Install a new spark plug, hand-tighten, then torque to manufacturer specifications (usually around 22 Nm).
  • Reinstall the ignition coil and reconnect the connector.

3. Test and Replace Ignition Coil

  • If the spark plug is in good condition, test the ignition coil.
  • Tools Required: Multimeter.
  • Measure the primary and secondary resistance as per specifications.
  • If the coil is faulty, replace it with a new one.
  • Reconnect all components securely.

4. Inspect Fuel Injector

  • Tools Required: Fuel pressure gauge, injector cleaner.
  • Disconnect the fuel injector connector.
  • Use a fuel pressure gauge to check fuel pressure at the rail.
  • If pressure is low, check the fuel pump and filter.
  • If the injector is clogged, use injector cleaner or replace it.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • OBD-II scanner
  • Socket set
  • Torque wrench
  • Multimeter
  • Fuel pressure gauge
  • Injector cleaner

Parts Required

  • Spark plug (if replacement needed)
  • Ignition coil (if faulty)
  • Fuel injector (if clogged or faulty)

Additional Information

Error CodeP0302
Component

Engine

Repair Time

2-4 hours

Difficulty

medium

Severity

medium

Tools

6 items

Parts

3 items

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