my Honda Accord has poor acceleration what could be the issue

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface.
• Disconnect the battery to avoid electrical shorts.
• Gather tools and parts needed for the repair.

2. Inspect and Replace Air Filter

• Remove the air filter housing cover by unscrewing it.
• Take out the old air filter and inspect it for dirt and blockages.
• Install a new air filter, ensuring it fits securely.
• Reattach the air filter housing cover and tighten screws.

3. Fuel System Cleaning

• Use a fuel system cleaner additive and add it to the fuel tank as per the manufacturer's instructions.
• If fuel pressure was low, replace the fuel filter before adding the cleaner.
• Run the engine to allow the cleaner to circulate through the fuel system.

4. Spark Plug Inspection and Replacement

• Remove the ignition coil cover if applicable.
• Use a socket set to remove the spark plugs.
• Inspect the spark plugs for wear; replace them if necessary with OEM or equivalent parts.
• Reinstall the spark plugs and reconnect the ignition coils.

5. Throttle Position Sensor Replacement

• Locate the throttle position sensor on the throttle body.
• Disconnect the electrical connector and remove the mounting screws.
• Install the new throttle position sensor and reconnect the electrical connector.

6. Reconnect Battery and Test

• Reconnect the battery terminals.
• Start the engine and allow it to idle for a few minutes to reset the ECU.
• Test drive the vehicle to assess acceleration improvement.