why does my Honda Pilot YF4 (2023-Present) check engine light keep coming on

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 Faulty Components

A. If Error Codes Indicate Ignition Issues

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil(s) and inspect for damage.
• Replace any damaged ignition coils and spark plugs as needed, ensuring proper torque specifications (typically 13-15 ft-lbs for spark plugs).

B. If Fuel System Issues Are Found

• Tools Required: Fuel pressure gauge, line disconnect tool.
• Connect the fuel pressure gauge to the fuel rail and turn the ignition to the "ON" position (do not start the engine).
• Check pressure readings against manufacturer specifications (usually between 30-50 psi).
• If pressure is low, inspect fuel pump, fuel filter, and fuel injectors for blockages or failures.

3. Clear Codes and Reconnect Battery

• After repairs, reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the trouble codes from the vehicle’s computer.