my Toyota Corolla E210 (2019-2024) is losing power when accelerating, what could it be?

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the battery to ensure safety while working on electrical components.

2. Clean or Replace the Air Filter

• Remove the air filter housing cover.
• Take out the air filter and inspect it for dirt or damage.
• If dirty, clean it with compressed air or replace it with a new filter.
• Reinstall the air filter and cover.

3. Fuel Pressure Test

• Locate the fuel rail and connect the fuel pressure gauge to the test port.
• Turn the ignition to the "ON" position (do not start the engine) to check the fuel pressure reading.
• Compare the reading to the manufacturer's specifications (usually around 43-50 psi for most Toyota models).
• If pressure is low, consider replacing the fuel pump.

4. Throttle Body Cleaning

• Remove the intake duct connected to the throttle body.
• Use throttle body cleaner and a soft cloth to clean the inside of the throttle body.
• Ensure the throttle plate moves freely and does not stick.
• Reassemble the intake duct.

5. Spark Plug Inspection and Replacement

• Remove the ignition coil connectors and bolts to access the spark plugs.
• Use a spark plug socket to remove the spark plugs.
• Inspect each plug for wear or fouling; replace if necessary with OEM specification plugs.
• Reinstall the spark plugs and ignition coils.

6. Reconnect Battery and Clear Codes

• Reconnect the battery terminals securely.
• Use the OBD-II scanner to clear any stored trouble codes.
• Start the vehicle and allow it to idle for a few minutes.