my Toyota Camry Eighth Generation (2018-present) has poor acceleration after a cold start

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery to ensure safety during the repair process.

2. Air Intake Inspection

• Tools Required: Socket set, flathead screwdriver
• Remove the air filter housing by unscrewing the bolts and disconnecting any clamps.
• Inspect the air filter; replace if dirty.
• Check the intake ducts for cracks or loose connections and replace any damaged components.

3. Fuel System Check

• Tools Required: Fuel pressure gauge, safety glasses
• Connect the fuel pressure gauge to the fuel rail service port.
• Turn the ignition to the "ON" position (do not start) and check the fuel pressure reading against specifications (typically 40-50 psi for most Camrys).
• If pressure is low, inspect the fuel pump and filter for blockage or failure, replacing as necessary.

4. Throttle Body Cleaning

• Tools Required: Throttle body cleaner, soft cloth, screwdriver
• Remove the air intake duct connected to the throttle body.
• Using throttle body cleaner, spray the interior of the throttle body and wipe away carbon deposits with a soft cloth.
• Reattach the air intake duct securely.

5. Coolant Temperature Sensor Inspection

• Tools Required: Multimeter
• Locate the coolant temperature sensor and disconnect the electrical connector.
• Use a multimeter to measure the resistance of the sensor at different temperatures; compare readings to manufacturer specifications.
• If the sensor is faulty, replace it with a new one.

6. Ignition System Check

• Tools Required: Spark plug socket, torque wrench
• Remove the spark plugs and inspect for wear or fouling.
• Replace worn or damaged spark plugs with the manufacturer-recommended type.
• Check ignition coils for cracks or damage; replace if necessary.