my Toyota RAV4 has poor acceleration, what could be the issue?

Solution

1. Preparation

• Gather necessary tools and ensure the vehicle is on a flat surface.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Tools Required: OBD-II scanner, socket set, torque wrench, multimeter.

2. Clean or Replace Air Filter

• Remove the air filter housing cover.
• Inspect the air filter; clean or replace it if dirty.
• Reinstall the air filter housing cover securely.

3. Inspect and Clean Throttle Body

• Remove the throttle body from the intake manifold.
• Use throttle body cleaner and a soft cloth to clean the interior surfaces.
• Reinstall the throttle body and torque to manufacturer specifications.

4. Test and Replace Fuel Components

• Check the fuel pump pressure using a fuel pressure gauge; ensure it meets specifications.
• If the fuel pump is faulty, replace it.
• Clean or replace fuel injectors if they are clogged.

5. Check and Replace Spark Plugs and Ignition Coils

• Remove spark plugs and inspect for wear or damage.
• Replace spark plugs that show signs of wear.
• Test ignition coils with a multimeter; replace any that fail.