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why does my Honda Civic 10th Generation (2016-2021) engine light come on and off - Honda Civic
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why does my Honda Civic 10th Generation (2016-2021) engine light come on and off

Honda Civic 10th Generation (2016-2021)

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

Problem Statement

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

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 checking or changing oil to prevent burns.

Symptoms

  • •Check engine light illuminated intermittently
  • •Possible rough idle when the light is on
  • •Decreased fuel efficiency
  • •Engine stalling or hesitation during acceleration
  • •Unusual engine noise or vibration
  • •Potentially increased emissions

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
  • •Screwdriver set
  • •Oil filter wrench

Parts Required

  • •Spark plugs (if worn)
  • •Ignition coils (if faulty)
  • •Air filter (if clogged)
  • •Engine oil and oil 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 necessary tools and parts.
  • Disconnect the negative battery terminal to ensure safety.
  • Ensure the vehicle is on a flat surface and secure.
2. Address Fault Codes
  • Connect the OBD-II scanner and retrieve the fault codes.
  • Research the codes to identify specific components or systems that may need attention.
3. Inspect and Replace Components
  • Gas Cap:
    • Check for cracks or damage.
    • Replace if defective.
  • Spark Plugs:
    • Remove spark plugs using a socket set.
    • Inspect for wear; replace if necessary (OEM specifications recommend replacing every 30,000 miles).
    • Torque new spark plugs to 13 lb-ft.
  • Ignition Coils:
    • Disconnect electrical connectors from coils.
    • Remove coils and inspect for damage; replace any faulty coils.
    • Reinstall coils ensuring connectors are secure.
4. Clean or Replace Air Filter
  • Open the air filter housing.
  • Remove the air filter and inspect for dirt or clogs.
  • Clean or replace the air filter as necessary.
5. Check Engine Oil
  • Remove the dipstick and check oil level and color.
  • If low or dirty, drain old oil and replace it with the recommended oil type (0W-20 for Honda Civic).
  • Replace the oil filter as well during this process.
6. Reconnect Battery and Test Drive
  • Reconnect the negative battery terminal.
  • Start the engine and monitor if the check engine light remains off.
  • Test drive the vehicle to ensure normal operation.