my Toyota Highlander XU70 (2020-Present) loses acceleration after a stop, what should I check

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shock.

2. Clean or Replace Throttle Body

• Tools Required: Socket set, throttle body cleaner, soft cloth.
• Remove the air intake duct connected to the throttle body.
• Use throttle body cleaner and a soft cloth to clean the throttle plate and body.
• Reassemble the air intake duct and reconnect the battery terminal.

3. Check Fuel System

• Tools Required: Fuel pressure gauge, wrench set.
• Locate the fuel rail and connect the fuel pressure gauge.
• Turn the ignition to the "ON" position (without starting) to check the pressure.
• If the pressure is below specification (consult manufacturer specs), consider replacing the fuel filter or fuel pump.

4. Inspect MAF Sensor

• Tools Required: Torx screwdriver, electrical cleaner.
• Disconnect the MAF sensor connector and remove the sensor from the air intake.
• Spray electrical cleaner on the sensor element to remove any debris.
• Reinstall the MAF sensor and reconnect the wiring harness.

5. Check Transmission Fluid

• Tools Required: Dipstick, funnel, transmission fluid.
• Locate the transmission fluid dipstick and check the fluid level.
• If low, add the recommended type of transmission fluid as per owner's manual.