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why does my Honda Accord 10th Generation (2018-2022) engine light come on and off - Honda Accord
Home/Cars/Honda/Accord/8th Generation (2008-2012)/why does my Honda Accord 10th Generation (2018-2022) engine light come on and off

why does my Honda Accord 10th Generation (2018-2022) engine light come on and off

Honda Accord 8th Generation (2008-2012)

Error Codes
1-3 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
527 words

Problem Statement

Learn how to diagnose and fix the intermittent engine light issue in Honda Accord 10th Generation (2018-2022). Step-by-step guide with diagnostic procedures.

Affected Component
Engine
Estimated Time
1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems to avoid short circuits.
  • •Allow the engine to cool before performing any inspections or repairs to prevent burns.

Symptoms

  • •Check engine light illuminated intermittently
  • •Engine may run rough at times
  • •Decreased fuel efficiency
  • •Occasional loss of power during acceleration
  • •Possible unusual noises from the engine compartment

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
  • •Screwdrivers
  • •Mass air flow (MAF) cleaner

Parts Required

  • •Spark plugs (if worn)
  • •Ignition coils (if necessary)
  • •Air filter (if dirty)

Additional Information

Affected Component
Engine
Estimated Time
1-3 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
3 items

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Solution
1. Preparation
  • Gather tools and parts.
  • Ensure the vehicle is parked on a level surface and the engine is cool.
  • Disconnect the negative battery terminal to ensure safety while working on electrical components.
2. Retrieve and Analyze Error Codes
  • Connect the OBD-II scanner to the vehicle's diagnostic port.
  • Turn the ignition to the "ON" position without starting the engine.
  • Read and record the error codes displayed. Reference a repair manual or online database for code definitions.
3. Inspect and Replace Worn Components
  • Spark Plugs and Ignition Coils:

    • Remove engine cover if applicable.
    • Disconnect electrical connectors from the ignition coils.
    • Use a socket set to remove the coils and spark plugs.
    • Inspect for wear; replace with OEM parts as necessary.
    • Reinstall in reverse order, ensuring proper torque specifications (typically 13 lb-ft for spark plugs).
  • Air Intake System:

    • Visually inspect the air filter; replace if dirty.
    • Check the intake duct for cracks or loose connections.
    • Clean the mass air flow (MAF) sensor using MAF cleaner if applicable.
4. Reconnect Battery and Clear Codes
  • Reconnect the negative battery terminal.
  • Use the OBD-II scanner to clear any error codes from the system.
  • Start the engine and observe if the check engine light illuminates again.