why is my Volkswagen Golf MK7 (2015-2019) engine light flashing

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Replace Faulty Spark Plugs and Ignition Coils

1. Remove the engine cover, if applicable, to access the ignition components.
2. Disconnect the electrical connectors from the ignition coils.
3. Unscrew the ignition coils using a socket set and remove them from the spark plug wells.
4. Remove the old spark plugs using a spark plug socket and inspect for wear or damage.
5. Install new spark plugs, tightening to manufacturer specifications (typically around 22 ft-lbs).
6. Reinstall the ignition coils and reconnect their electrical connectors.

3. Test and Replace Fuel Injectors (if necessary)

1. Disconnect the fuel pump fuse and start the engine to relieve fuel pressure.
2. Remove the fuel rail by unscrewing the bolts and disconnecting the injector connectors.
3. Take out the old fuel injectors from the rail.
4. Install new fuel injectors, ensuring an appropriate seal and alignment.
5. Reinstall the fuel rail and reconnect the fuel pump fuse.

4. Inspect Exhaust and Intake Systems

1. Check the exhaust system for any visible cracks or holes.
2. Inspect the intake manifold and vacuum hoses for leaks or damage.
3. Replace any damaged components as necessary.