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why does my Honda Civic check engine light keep coming on after reset - Honda Civic
Home/Cars/Honda/Civic/10th Generation (2016-2021)/why does my Honda Civic check engine light keep coming on after reset

why does my Honda Civic check engine light keep coming on after reset

Honda Civic 10th Generation (2016-2021)

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

Problem Statement

Learn how to diagnose and fix the check engine light issue in your Honda Civic. Step-by-step guide with symptoms, diagnostic steps, 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 down before performing any repairs.

Symptoms

  • •Check engine light illuminated
  • •Engine running rough or misfiring
  • •Decreased fuel efficiency
  • •Strange noises from the engine
  • •Emissions test failure
  • •Potential odor of fuel or burnt oil

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
  • •Fuel pressure gauge
  • •Screwdrivers

Parts Required

  • •New gas cap (if damaged)
  • •Spark plugs (if worn)
  • •Ignition coils (if faulty)
  • •Fuel pump (if pressure is low)
  • •Catalytic converter (if blocked)

Additional Information

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

Related Faults

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Solution
1. Preparation
  • Gather necessary tools and parts before starting the repair.
  • Ensure the vehicle is parked on a flat surface and the engine is cool.
  • Disconnect the battery to prevent electrical issues.
2. Address Fault Codes
  • Sub-step 1: After scanning, note all fault codes.
  • Sub-step 2: Research each code to determine the likely cause.
  • Sub-step 3: Clear the codes and monitor if they return after repairs.
3. Inspect and Replace Components
  • Sub-step 1: For vacuum leaks, inspect hoses and connections; replace any that are cracked or disconnected.
  • Sub-step 2: Check the gas cap for proper sealing; if damaged, replace with a new gas cap.
  • Sub-step 3: For faulty ignition components, remove spark plugs and inspect; replace any that are worn. Test ignition coils with a multimeter, replacing as necessary.
  • Sub-step 4: For fuel system issues, check the fuel pressure using a fuel pressure gauge; replace the fuel pump if pressure is low.
  • Sub-step 5: Inspect the catalytic converter; if blocked, replace it.
4. Reassemble and Reconnect
  • Reinstall any components removed during inspection and repairs.
  • Reconnect the battery and ensure all connections are secure.