how to fix a Toyota Camry XV50 that has weak acceleration

Solution

1. Preparation

• Gather 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 shorts.

2. Replace Air Filter

• Remove the air filter housing cover using a socket set.
• Take out the old air filter and inspect the housing for debris.
• Install a new air filter, ensuring it fits snugly, then reattach the housing cover.

3. Clean Throttle Body

• Remove the intake duct connected to the throttle body.
• Use throttle body cleaner and a clean cloth to remove carbon deposits from the throttle plate.
• Reattach the intake duct securely.

4. Test and Replace Fuel Pump (if necessary)

• Connect a fuel pressure gauge to the fuel rail.
• Turn the ignition to the "ON" position without starting the engine and check fuel pressure readings.
• If pressure is below specifications, remove the rear seat and access the fuel pump module.
• Disconnect the electrical connector and fuel lines, then unbolt the fuel pump assembly.
• Replace with a new fuel pump and reassemble everything.

5. Inspect and Replace Ignition Components

• Remove the ignition coils by unbolting them and disconnecting the wiring harness.
• Check spark plugs for wear; replace if they have excessive carbon buildup or are worn.
• Install new spark plugs and reattach ignition coils.