why is my Honda Accord 10th Generation (2018-2022) engine light on

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, multimeter, torque wrench, basic hand tools.
• Ensure the vehicle is parked on a level surface, and the engine is cool before starting work.

2. Address Error Codes

• Use the OBD-II scanner to retrieve error codes.
• Research codes to determine potential issues (e.g., P0300 for random misfire).
• Document codes for reference during repair.

3. Inspect and Replace Components

A. Engine Oil Inspection

• Remove the dipstick and wipe it clean.
• Reinsert and check oil level; top off if low.
• If oil is dirty or degraded, drain and replace with new oil.

B. Air Filter Replacement

• Open the hood and locate the air filter housing.
• Release clips or screws and remove the cover.
• Take out the old air filter and replace it with a new one.

C. Inspect Ignition System

• Remove the ignition coil cover and disconnect the battery.
• Unplug ignition coils and remove them using a socket.
• Inspect coils for cracks; replace any faulty units.
• Inspect spark plugs for wear; replace if necessary (gap to manufacturer specifications).

D. Check Fuel System

• Use a fuel pressure gauge to measure fuel pressure at the rail.
• If pressure is low, inspect the fuel pump and filter for issues.
• Clean or replace fuel injectors as needed.

4. Test and Reassemble

• Reassemble all components and ensure all connections are secure.
• Reconnect the battery and clear any error codes using the OBD-II scanner.