FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
how can I fix the high idle issue on my Honda Accord 9th Generation (2013-2017) - Honda Accord
Home/Cars/Honda/Accord/Eleventh Generation (2023-present)/how can I fix the high idle issue on my Honda Accord 9th Generation (2013-2017)

how can I fix the high idle issue on my Honda Accord 9th Generation (2013-2017)

Honda Accord Eleventh Generation (2023-present)

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

Problem Statement

Learn how to diagnose and fix high idle issues in Honda Accord 9th Generation (2013-2017). 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 starting work on electrical systems.
  • •Allow engine to cool before opening any components to avoid burns.

Symptoms

  • •Engine RPM exceeds normal idle range (typically above 1000 RPM)
  • •Poor fuel economy
  • •Engine stalling when coming to a stop
  • •Unstable engine performance
  • •Check engine light illuminated (possible fault codes related to idle air control)

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
  • •Screwdriver set
  • •Throttle body cleaner
  • •Torque wrench
  • •Multimeter

Parts Required

  • •Idle Air Control (IAC) valve (if necessary)
  • •New vacuum hoses (if damaged)
  • •Mass Air Flow (MAF) sensor cleaner

Additional Information

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

Related Faults

Loading...

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation
Solution
1. Preparation
  • Gather tools and parts before starting the repair.
  • Tools Required: OBD-II scanner, socket set, screwdriver set, cleaning supplies (throttle body cleaner), torque wrench, multimeter.
  • Safety Warnings: Disconnect the battery before starting work on electrical systems.
2. Clean Throttle Body
  • Remove the air intake duct connected to the throttle body using a socket set.
  • Spray throttle body cleaner onto a clean rag and wipe the interior of the throttle body to remove carbon buildup.
  • Ensure the throttle plate moves freely and closes completely.
  • Reattach the air intake duct and ensure all clamps are tightened.
3. Inspect and Clean IAC Valve
  • Locate the IAC valve (usually near the throttle body) and remove the electrical connector.
  • Unbolt the IAC valve using a socket set and remove it from the engine.
  • Clean the IAC valve with throttle body cleaner to remove any deposits.
  • Reinstall the IAC valve and reconnect the electrical connector.
4. Check Vacuum Lines
  • Visually inspect all vacuum lines for cracks, tears, or loose connections.
  • Replace any damaged vacuum hoses with new ones.
  • Ensure all connections are tight.
5. Test MAF Sensor
  • Disconnect the MAF sensor connector and remove it from the intake tract.
  • Inspect the sensor for dirt and clean it using MAF cleaner if necessary.
  • Reinstall the MAF sensor and reconnect the electrical connector.
6. Test Engine Coolant Temperature Sensor
  • Locate the coolant temperature sensor and disconnect it.
  • Use a multimeter to check the resistance of the sensor and compare it to the specifications in the service manual.
  • Replace the sensor if it is out of range.