how to fix a rough running engine in my Toyota Tacoma N300 (2016-Present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle's battery to ensure safety during repairs.

2. Replace Spark Plugs

1. Remove the engine cover (if applicable).
2. Using a socket wrench, remove the spark plug wires or ignition coils.
3. Remove the old spark plugs using a spark plug socket.
4. Inspect the condition of the old spark plugs for signs of fouling or wear.
5. Install new spark plugs, ensuring they are gapped to manufacturer specifications (typically 0.043 inches for Tacoma).
6. Reattach the ignition coils or spark plug wires securely.

3. Clean the Throttle Body

1. Remove the air intake duct to access the throttle body.
2. Use throttle body cleaner and a soft cloth to clean the throttle plate and surrounding area.
3. Reassemble the air intake duct securely.

4. Replace Air Filter

1. Locate the air filter housing and unclip or unscrew it.
2. Remove the old air filter and inspect the housing for debris.
3. Install a new air filter, ensuring it fits snugly in place.
4. Reassemble the air filter housing.

5. Check Fuel System

1. If fuel pressure was inadequate, replace the fuel filter (if applicable) or inspect the fuel pump.
2. Ensure the fuel lines are connected securely and free of leaks.
3. Reconnect the battery.