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why does my Honda CR-V Fifth Generation (2017-2022) check engine light come on and off - Honda CR-V
Home/Cars/Honda/CR-V/Fifth Generation (2017-2022)/why does my Honda CR-V Fifth Generation (2017-2022) check engine light come on and off

why does my Honda CR-V Fifth Generation (2017-2022) check engine light come on and off

Honda CR-V Fifth Generation (2017-2022)

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

Problem Statement

Learn how to diagnose and fix the intermittent check engine light issue in Honda CR-V (2017-2022). Step-by-step guide with symptoms and solutions.

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 engine to cool before inspecting the exhaust system.

Symptoms

  • •Check engine light illuminated intermittently
  • •Engine running rough or unstable idle
  • •Decreased fuel efficiency
  • •Occasional loss of power during acceleration
  • •Unusual noises from the engine compartment
  • •Possible emissions test failure

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
  • •Fuel pressure gauge
  • •Multimeter
  • •Smoke tester

Parts Required

  • •Gas cap (if necessary)
  • •Spark plugs (if worn)
  • •Ignition coils (if faulty)
  • •Fuel pump (if defective)
  • •Exhaust components (if damaged)

Additional Information

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

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and the engine is off.
  • Disconnect the battery negative terminal to avoid electrical issues during repairs.
2. Inspect and Replace the Gas Cap
  • Sub-steps:
    • Remove the existing gas cap and inspect for cracks or wear.
    • Clean the filler neck of any debris.
    • If damaged, replace with a new gas cap (ensure it's the correct type for the CR-V).
3. Check for Vacuum Leaks
  • Sub-steps:
    • Use a smoke tester to identify vacuum leaks in hoses and the intake manifold.
    • Repair or replace any damaged hoses or components found.
4. Inspect Ignition System
  • Sub-steps:
    • Remove the engine cover (if applicable).
    • Check each spark plug for wear (replace if necessary).
    • Test ignition coils with a multimeter for proper resistance.
    • Replace any faulty spark plugs or ignition coils.
5. Test Fuel System
  • Sub-steps:
    • Attach a fuel pressure gauge to the fuel rail.
    • Turn the ignition to the 'ON' position and observe the pressure reading.
    • If pressure is below specifications, test the fuel pump and replace if faulty.
6. Examine the Exhaust System
  • Sub-steps:
    • Visually inspect the exhaust system for any signs of damage.
    • Check for blockages in the catalytic converter.
    • Replace any damaged sections of the exhaust or the catalytic converter if necessary.

Tools Required:

  • OBD-II scanner
  • Socket set
  • Torque wrench
  • Fuel pressure gauge
  • Multimeter
  • Smoke tester

Parts Required:

  • Gas cap (if necessary)
  • Spark plugs (if worn)
  • Ignition coils (if faulty)
  • Fuel pump (if defective)
  • Exhaust components (if damaged)

Estimated Repair Time: 2-4 hours

Safety Warnings:

  • Disconnect the battery before working on electrical systems.
  • Allow engine to cool before inspecting the exhaust system.