why does my Honda Civic 11th Generation (2022-Present) engine light stay on?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to reset the engine light and prevent electrical shorts.
• Ensure the vehicle is on a level surface and secure it with wheel chocks.

2. Address Diagnostic Codes

• Sub-step 1: Use the OBD-II scanner to retrieve diagnostic trouble codes (DTCs).
• Sub-step 2: Research the codes to determine the specific malfunction (e.g., P0420 for catalytic converter efficiency).
• Sub-step 3: Based on the codes, proceed with targeted repairs (for example, replacing a faulty sensor or component).

3. Inspect and Replace Components

• Sub-step 1: If the gas cap is damaged, replace it with an OEM part to ensure proper sealing.
• Sub-step 2: If the air filter is clogged, replace it with a new filter that meets Honda specifications.
• Sub-step 3: If ignition components are worn, replace spark plugs and ignition coils as needed.

4. Reassemble and Reset

• Sub-step 1: Reconnect the negative battery terminal.
• Sub-step 2: Clear the error codes using the OBD-II scanner.
• Sub-step 3: Start the engine and observe for any warning lights.