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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/10th Generation (2016-2021)/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 10th Generation (2016-2021)

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

Problem Statement

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

Affected Component
Engine
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Allow the engine to cool before inspecting any components.

Symptoms

  • •Check engine light illuminated
  • •Engine running rough or misfiring
  • •Decreased fuel efficiency
  • •Increased emissions
  • •Unusual noises from the engine
  • •Poor acceleration or loss of power

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
  • •Multimeter
  • •Torque wrench
  • •Vacuum gauge

Parts Required

  • •Spark plugs
  • •Ignition coils (if needed)
  • •Vacuum hoses (if needed)
  • •Fuel filter (if needed)

Additional Information

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

Related Faults

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Solution
1. Preparation
  • Gather tools: OBD-II scanner, socket set, multimeter, torque wrench, vacuum gauge.
  • Disconnect the battery to ensure safety while working on electrical components.
2. Address Fault Codes
  • Using the OBD-II scanner, retrieve and document the fault codes.
  • Clear the codes and perform a test drive to see if they return.
3. Inspect and Replace Components
  • Gas Cap: Check the gas cap for damage; if cracked or not sealing properly, replace it.
  • Spark Plugs/Ignition Coils:
    • Remove the engine cover if applicable.
    • Disconnect the ignition coils and remove them using a socket set.
    • Inspect the spark plugs; replace if fouled or worn beyond specifications.
    • Reinstall new spark plugs and ignition coils, ensuring they are torqued to manufacturer specifications.
4. Check for Vacuum Leaks
  • Inspect all vacuum hoses for cracks or disconnections. Replace any damaged hoses.
  • Use a vacuum gauge to test for leaks; if found, repair or replace the affected components.
5. Inspect Fuel System
  • Connect a fuel pressure gauge to the fuel rail; ensure the pressure meets specifications.
  • If pressure is low, check the fuel pump and filter; replace if necessary.
6. Reassemble and Test
  • Reconnect the battery.
  • Start the engine and monitor for the check engine light.
  • Conduct a test drive to ensure all symptoms are resolved.