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why does my Honda Civic 10th Generation (2016-2021) check engine light keep coming on? - Honda Civic
Home/Cars/Honda/Civic/11th Generation (2022-Present)/why does my Honda Civic 10th Generation (2016-2021) check engine light keep coming on?

why does my Honda Civic 10th Generation (2016-2021) check engine light keep coming on?

Honda Civic 11th Generation (2022-Present)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
573 words

Problem Statement

Discover how to diagnose and fix the check engine light issue in Honda Civic 10th Generation (2016-2021). Step-by-step guide with diagnostic steps and solutions.

Affected Component
Engine
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical components.
  • •Allow the engine to cool before inspecting or removing components.

Symptoms

  • •Check engine light illuminated
  • •Engine may run roughly or misfire
  • •Decreased fuel efficiency
  • •Unusual engine noises (e.g., knocking or pinging)
  • •Emissions may be higher than normal
  • •Possible loss of power during acceleration

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •OBD-II scanner
  • •Socket set
  • •Torque wrench
  • •Spark plug socket
  • •Feeler gauge

Parts Required

  • •Spark plugs (specific to engine type)
  • •Ignition coils (if faulty)
  • •Air filter
  • •Fuel cap (if necessary)

Additional Information

Affected Component
Engine
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
4 items

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Solution
1. Preparation
  • Gather tools and parts necessary for the repair.
  • Ensure the vehicle is parked on a level surface and the engine is cool.
  • Disconnect the negative battery terminal to prevent electrical shorts.
2. Addressing Common Issues

A. Replace Faulty Spark Plugs

  1. Remove Ignition Coils:

    • Disconnect electrical connectors from the ignition coils.
    • Unbolt the ignition coils using a socket set.
    • Carefully pull the coils out of the spark plug tubes.
  2. Replace Spark Plugs:

    • Using a spark plug socket, remove the old spark plugs.
    • Check the gap of the new spark plugs using a feeler gauge and adjust if necessary.
    • Install new spark plugs by hand to avoid cross-threading, then torque to manufacturer specifications (typically around 13 lb-ft).
  3. Reinstall Ignition Coils:

    • Place the ignition coils back into their respective positions.
    • Bolt them down and reconnect the electrical connectors.

B. Inspect and Replace Air Filter

  1. Remove Air Filter Housing:

    • Unclip or unbolt the air filter housing cover.
    • Remove the cover to access the air filter.
  2. Replace the Air Filter:

    • Take out the old air filter and dispose of it properly.
    • Install the new air filter, ensuring it fits snugly in the housing.
    • Reattach the cover securely.
3. Check and Replace Fuel Cap
  1. Inspect Fuel Cap:

    • Check the integrity of the fuel cap for cracks or wear.
  2. Replace if Necessary:

    • If the fuel cap is damaged, replace it with a new OEM or equivalent part, ensuring it fits correctly.