my Honda CR-V's check engine light keeps coming on, what could be wrong?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Replace Faulty Components (if applicable)

• Fuel Cap Replacement:
  • Remove the old fuel cap and install a new one, ensuring it clicks into place.
• Spark Plug Replacement:
  • Remove the ignition coil by unscrewing the bolts and disconnecting the electrical connector.
  • Unscrew the old spark plug using a spark plug socket and replace with a new one, torquing to manufacturer specifications (typically 13-15 ft-lbs).
• Air Filter Replacement:
  • Open the air filter housing and remove the old filter.
  • Clean the housing and insert a new filter, ensuring a snug fit.

3. Clear Error Codes

• Reconnect the battery.
• Use the OBD-II scanner to clear any stored error codes from the system.

4. Test Components

• Start the engine and let it idle, checking for any abnormal sounds or performance issues.
• Perform a test drive to ensure the check engine light stays off and that the vehicle accelerates smoothly.