why does my Toyota RAV4 XA50 (2019-2024) engine hesitate when accelerating

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the battery to ensure safety.
• Allow the engine to cool before starting work.

2. Inspect and Replace Air Filter

• Locate the air filter housing.
• Remove the screws or clips securing the housing.
• Take out the old air filter and inspect it for dirt and damage.
• Install a new air filter, ensuring it fits snugly in the housing.
• Reattach the housing securely.

3. Fuel Pressure Check

• Connect a fuel pressure gauge to the fuel rail.
• Turn the ignition to the "ON" position without starting the engine to check the pressure reading.
• Compare the reading with manufacturer specifications (usually found in the service manual).
• If pressure is low, inspect the fuel pump and fuel filter for issues.

4. Inspect and Replace Spark Plugs

• Remove the ignition coil cover if applicable.
• Disconnect the ignition coils and remove them from the spark plugs.
• Use a spark plug socket to remove the spark plugs.
• Inspect the spark plugs for wear and replace them if necessary.
• Reinstall new spark plugs with the correct torque (usually around 13 lb-ft or as specified).
• Reinstall the ignition coils.

5. Clean Throttle Body

• Remove the intake duct connected to the throttle body.
• Use throttle body cleaner and a soft cloth to remove carbon buildup from the throttle body.
• Open the throttle plate and clean inside carefully.
• Reconnect the intake duct securely.

6. MAF Sensor Cleaning

• Disconnect the MAF sensor electrical connector.
• Remove the MAF sensor from the air intake duct.
• Spray MAF sensor cleaner onto the sensor elements, avoiding physical contact.
• Allow it to dry and reinstall the sensor and connector.