my Toyota RAV4 XA40 (2013-2018) has a check engine light and no power, what could it be?

Solution

1. Preparation

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

2. Scan for Error Codes

• Connect the OBD-II scanner to the vehicle's diagnostic port.
• Turn the ignition to the "ON" position (do not start the engine).
• Record any trouble codes that are displayed and research them for further insights.

3. Inspect and Clean Components

A. Air Filter Inspection

• Remove the air filter housing cover using a socket set.
• Take out the air filter and inspect it for dirt and debris; replace if necessary.
• Clean the housing with a damp cloth.

B. Throttle Body Cleaning

• Remove the intake duct from the throttle body.
• Use throttle body cleaner and a soft brush to clean the throttle plate and surrounding areas.
• Reinstall the intake duct securely.

4. Fuel System Check

• Locate the fuel pressure test port on the fuel rail.
• Attach the fuel pressure gauge and turn the ignition to the "ON" position to check pressure.
• Compare the reading to the manufacturer's specifications; replace the fuel pump if pressure is low.

5. Mass Airflow Sensor (MAF) Cleaning

• Disconnect the MAF sensor connector.
• Remove the sensor from the intake duct.
• Spray MAF cleaner on the sensor element and allow it to dry before reinstalling.