FAULTBASE
NEWSASKCars
© 2025 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
Home/Cars/Volkswagen/Golf/MK7.5 (2020-Present)/how to fix the check engine light for code P0302 on Volkswagen Golf MK7.5 (2020-Present)

how to fix the check engine light for code P0302 on Volkswagen Golf MK7.5 (2020-Present)

Volkswagen Golf MK7.5 (2020-Present)

Severity: highDifficulty: mediumError Code: P03022-4 hours
4 min read
602 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix P0302 cylinder 2 misfire in Volkswagen Golf MK7.5. 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 starting any work on the ignition system.

Symptoms

  • •Check engine light illuminated
  • •Rough idle or uneven engine running
  • •Decreased engine performance 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 the ignition system components, including spark plug and ignition coil for cylinder 2.
  3. 3Check fuel injector operation for cylinder 2 using a noid light or fuel pressure gauge.
  4. 4Perform a visual inspection of the vacuum hoses for leaks.
  5. 5Conduct a compression test on cylinder 2 to assess engine health.
  6. 6Inspect the electrical connectors and wiring for damage related to cylinder 2 components.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the battery to prevent electrical shorts.

2. Inspect and Replace Ignition Components

  • Tools Required: Socket set, Torque wrench
  • Remove the engine cover if applicable.
  • Disconnect the electrical connector from the ignition coil on cylinder 2.
  • Remove the ignition coil using a socket wrench.
  • Inspect the spark plug; if worn or fouled, replace it. Use a spark plug gap tool to ensure proper gap.
  • Install a new ignition coil if necessary, ensuring it is seated properly.
  • Torque the ignition coil to manufacturer specifications.

3. Check and Replace Fuel Injector (if necessary)

  • Tools Required: Noid light, Fuel pressure gauge
  • Disconnect the electrical connector from the fuel injector on cylinder 2.
  • Use a noid light to check if the injector is receiving the proper signal. If not, trace wiring back to the ECU.
  • If the injector is faulty, remove it using a socket set and replace it with a new one.
  • Reconnect the fuel injector electrical connector.

4. Recheck and Repair Vacuum Leaks

  • Inspect all vacuum hoses connected to the intake manifold for cracks or loose connections.
  • Replace any damaged hoses.
  • Use a smoke test to identify any hidden leaks if necessary.

5. Compression Test (if misfire persists)

  • Tools Required: Compression tester
  • Remove the spark plug for cylinder 2.
  • Insert the compression tester into the spark plug hole.
  • Crank the engine and record the compression reading. Compare it to manufacturer specifications.
  • If compression is low, further investigation into internal engine components may be required.

6. Reassemble and Clear Codes

  • Reinstall any removed components such as the engine cover.
  • Reconnect the battery.
  • Use the OBD-II scanner to clear the P0302 code.

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
  • Noid light
  • Fuel pressure gauge
  • Compression tester

Parts Required

  • Spark plug for cylinder 2
  • Ignition coil for cylinder 2
  • Fuel injector for cylinder 2 (if needed)
  • Vacuum hoses (if damaged)

Additional Information

Error CodeP0302
Component

Engine

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

6 items

Parts

4 items

Related Faults

Discover similar issues

  1. my Volkswagen Golf MK7.5 (2020-Present) has a rough start in the morning what’s wrong

    Learn how to diagnose and fix rough start issues in Volkswagen Golf MK7.5. Step-by-step guide with diagnostic procedures and repair instructions.

    Component:Engine
    Symptoms
    • •Check engine light illuminated
    • •Engine cranks but does not start immediately
    • +{count} more
  2. why does my Volkswagen Golf MK7.5 (2020-Present) battery die when parked

    Learn how to diagnose and fix battery drain issues in Volkswagen Golf MK7.5. Step-by-step guide with diagnostic procedures and repair instructions.

    Component:Electrical
    Symptoms
    • •Battery warning light illuminated on the dashboard
    • •Difficulty starting the engine after being parked
    • +{count} more
  3. my Volkswagen Golf MK7.5 (2020-Present) makes a grinding noise when braking

    Learn how to diagnose and fix grinding noise when braking in Volkswagen Golf MK7.5. Step-by-step guide with diagnostic procedures and repair instructi...

    Component:Brakes
    Symptoms
    • •Grinding noise when applying brakes
    • •Vibration felt through the brake pedal
    • +{count} more
  4. how to fix a jerking transmission in my Volkswagen Golf MK7.5 (2020-Present)

    Learn how to diagnose and fix jerking transmission issues in Volkswagen Golf MK7.5. Step-by-step guide with diagnostic procedures and repair instructi...

    Component:Transmission
    Symptoms
    • •Jerking or shuddering during acceleration
    • •Delayed or harsh shifting between gears
    • +{count} more
  5. my Volkswagen Golf MK7.5 (2020-Present) is using too much fuel what's wrong

    Learn how to diagnose and fix excessive fuel consumption in Volkswagen Golf MK7.5. Step-by-step guide with diagnostic procedures and repair instructio...

    Component:Fuel System
    Symptoms
    • •Poor fuel economy
    • •Check engine light illuminated
    • +{count} more
  6. my Volkswagen Golf MK7.5 (2020-Present) headlights keep burning out what could be wrong

    Learn how to diagnose and fix frequent headlight burnout issues in Volkswagen Golf MK7.5. Step-by-step guide with diagnostic procedures and repair ins...

    Component:Electrical
    Symptoms
    • •Headlights burning out frequently (within weeks to months)
    • •Flickering headlights before burnout
    • +{count} more

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation