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why does my Honda CR-V check engine light keep coming back - Honda CR-V
Home/Cars/Honda/CR-V/Fifth Generation (2017-2022)/why does my Honda CR-V check engine light keep coming back

why does my Honda CR-V check engine light keep coming back

Honda CR-V Fifth Generation (2017-2022)

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

Problem Statement

Learn how to diagnose and fix the recurring check engine light issue in Honda CR-V. 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 components.
  • •Allow the engine to cool before inspecting or working on the fuel system.

Symptoms

  • •Check engine light illuminated
  • •Engine runs rough or experiences misfires
  • •Decreased fuel efficiency
  • •Loss of power during acceleration
  • •Unusual exhaust odors or increased emissions

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
  • •Fuel pressure gauge
  • •Torque wrench
  • •Screwdrivers

Parts Required

  • •Spark plugs
  • •Ignition coils (if needed)
  • •Gas cap (if faulty)
  • •Air filter (if dirty)
  • •Fuel pump (if needed)

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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Back to Generation
Solution
1. Preparation
  • Gather necessary tools and parts.
  • Disconnect the negative battery terminal to prevent electrical shorts.
  • Ensure the vehicle is on a level surface and safely elevated if necessary.
2. Address Fault Codes
  • Depending on the error codes retrieved from the OBD-II scanner, address the specific issues:
    • For misfires: Replace faulty spark plugs and ignition coils.
      • Remove the engine cover if applicable.
      • Disconnect the ignition coil connectors and remove the bolts.
      • Replace the spark plugs using a spark plug socket, ensuring the new plugs are gapped correctly.
      • Reinstall ignition coils and reconnect connectors.
    • For emissions-related codes: Inspect and replace the defective components such as the oxygen sensor or catalytic converter.
3. Inspect and Replace Gas Cap
  • If the gas cap is found to be faulty:
    • Remove the old gas cap and replace it with a new one.
    • Ensure it clicks into place securely.
4. Check Air Intake System
  • Inspect the air filter and intake hoses:
    • Remove the air filter and replace it if dirty or clogged.
    • Check hoses for cracks or leaks and replace as necessary.
5. Fuel Pressure Testing
  • If fuel pressure is low:
    • Connect the fuel pressure gauge to the fuel rail.
    • Turn the ignition to the "ON" position without starting the engine and check the pressure reading.
    • If pressure is low, replace the fuel pump or filter as needed.