my Honda Accord doesn't accelerate when I press the gas what's wrong

Solution

1. Preparation

• Gather tools including an OBD-II scanner, multimeter, socket set, and screwdrivers.
• Ensure the vehicle is parked on a level surface and the engine is off before starting any work.

2. Addressing Throttle Position Sensor Issues

• Disconnect the battery to ensure safety.
• Remove the throttle body assembly using a socket set.
• Inspect and clean the throttle body with throttle body cleaner.
• Use a multimeter to test the TPS by checking the resistance across the terminals while moving the throttle plate.
• If faulty, replace the TPS with a new one and reassemble the throttle body.

3. Fuel System Inspection

• Locate the fuel pump access point (often under the rear seat or in the trunk).
• Use a fuel pressure gauge to check the fuel pressure; it should typically be within the manufacturer's specifications.
• If pressure is low, replace the fuel filter and inspect the fuel pump for proper function.
• Reconnect any disconnected lines and ensure there are no leaks.

4. Air Intake System Examination

• Remove the air filter and inspect for cleanliness; replace if dirty.
• Check all intake hoses for cracks or loose connections; replace if necessary.
• Ensure the Mass Air Flow (MAF) sensor is clean; use MAF cleaner if needed.

5. Transmission Fluid Check

• Remove the transmission dipstick and check fluid level; add the correct type of transmission fluid if low.
• Inspect the fluid's color and smell; if it’s burnt or contaminated, consider a transmission fluid change.