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P2677 OBD2: Air Cleaner Inlet Control Circuit High

P2677 OBD2: Air Cleaner Inlet Control Circuit High

The P2677 OBD-II code refers to an issue with the Air Cleaner Inlet Control Circuit. Specifically, it indicates that the circuit is operating at a higher voltage than expected, which can affect the performance of the air intake system.

What Does the P2677 Code Mean?

The P2677 code is triggered when the onboard diagnostic system detects a problem in the Air Cleaner Inlet Control Circuit. This circuit helps regulate the airflow into the engine, ensuring optimal performance and fuel efficiency.

What Causes the P2677 Code?

  • Faulty air cleaner inlet control sensor
  • Wiring issues or corrosion in the circuit
  • Malfunctioning engine control module (ECM)
  • Issues with air intake components

What Are the Symptoms of the P2677 Code?

  • Illuminated check engine light
  • Decreased engine performance
  • Poor fuel economy
  • Rough idling

How Serious Is the P2677 Code?

The severity of the P2677 code is considered moderate. While it may not pose an immediate threat to vehicle safety, it can lead to performance issues and should be diagnosed and repaired promptly to avoid further complications.

How to Diagnose the P2677 Code

To properly diagnose the P2677 code, a professional mechanic will:

  • Use an OBD-II scanner to confirm the presence of the P2677 code.
  • Inspect the air cleaner inlet control circuit for any visible damage.
  • Test the air cleaner inlet control sensor.
  • Check for any related codes that may indicate a broader issue.

Common Repairs for the P2677 Code

  • Replacing a faulty air cleaner inlet control sensor
  • Repairing or replacing damaged wiring or connectors
  • Reprogramming or replacing the ECM if necessary

How Much Does It Cost to Fix the P2677 Code?

The cost to fix the P2677 code can vary based on the specific issue and labor rates, but it typically ranges from $100 to $400. This may include parts and labor for repairs or replacements.

Can I Fix the P2677 Code Myself?

While some may attempt to diagnose and repair the P2677 code themselves, it is recommended to seek assistance from a certified shop for proper diagnosis and repairs. This ensures that the issue is addressed effectively and safely.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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