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my Honda Accord 9th Generation (2013-2017) has a check engine light and rough idle - Honda Accord
Home/Cars/Honda/Accord/Eleventh Generation (2023-present)/my Honda Accord 9th Generation (2013-2017) has a check engine light and rough idle

my Honda Accord 9th Generation (2013-2017) has a check engine light and rough idle

Honda Accord Eleventh Generation (2023-present)

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

Problem Statement

Learn to diagnose and fix rough idle and check engine light issues in Honda Accord 2013-2017. Step-by-step guide with tools and 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 opening any components to prevent burns.

Symptoms

  • •Check engine light illuminated
  • •Rough idle when the engine is running
  • •Possible engine stalling during idle
  • •Decreased fuel efficiency
  • •Increased exhaust emissions
  • •Unusual engine noises (e.g., knocking or hissing)

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
  • •Throttle body cleaner
  • •Soft brush
  • •Spark plug socket
  • •Torque wrench
  • •Fuel pressure gauge
  • •Screwdrivers
  • •Pliers

Parts Required

  • •Spark plugs
  • •Fuel filter (if needed)
  • •Gaskets (if applicable for throttle body)

Additional Information

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

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Solution
1. Preparation
  • Gather tools and parts necessary for the repair.
  • Disconnect the negative terminal of the battery.
  • Allow the engine to cool before starting work.
2. Inspect and Clean Throttle Body
  • Remove the air intake duct to access the throttle body.
  • Use throttle body cleaner and a soft brush to clean the throttle plate and housing.
  • Ensure the throttle plate moves freely without obstruction.
  • Reinstall the air intake duct securely.
3. Replace Spark Plugs
  • Remove the ignition coil covers (if applicable) to access the spark plugs.
  • Disconnect the ignition coils and remove them from the spark plugs.
  • Use a spark plug socket to remove the old spark plugs.
  • Gap the new spark plugs to factory specifications and install them, torquing to 13 lb-ft.
  • Reattach the ignition coils and covers.
4. Inspect Fuel System
  • Connect a fuel pressure gauge to the fuel rail.
  • Turn the ignition to the ON position without starting the engine and check the fuel pressure reading.
  • If pressure is below specifications (check manual for specifics), replace the fuel filter and/or fuel pump.
5. Check for Vacuum Leaks
  • Visually inspect vacuum hoses for cracks or disconnection.
  • If suspected, use a smoke machine to identify leaks; fix any damaged hoses or connections.