my Ford Mustang S550 (2015-2023) keeps throwing P0301 code what to do

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the negative battery terminal to ensure safety.
• Allow the engine to cool before beginning work.

2. Replace Spark Plug

• Remove the spark plug wire or ignition coil from cylinder 1.
• Use a spark plug socket and ratchet to remove the old spark plug.
• Inspect the spark plug for signs of fouling or damage.
• Install a new spark plug (correct type and gap as per manufacturer specifications).
• Reattach the ignition coil or spark plug wire securely.

3. Inspect/Replace Ignition Coil

• If the ignition coil is faulty, remove it from cylinder 1 after disconnecting the electrical connector.
• Install a new ignition coil by reversing the removal steps, ensuring a snug fit.
• Reconnect the electrical connector.

4. Test Fuel Injector

• If the injector is suspected to be faulty, use a fuel injector testing tool to check its operation.
• If necessary, remove the injector with the appropriate tool (fuel rail removal tools may be required).
• Replace with a new fuel injector and reassemble the fuel rail securely.

5. Compression Test

• If compression is low, check for related issues (head gasket, valves, etc.).
• If necessary, perform repairs based on findings.