P2077 Fault Code

Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Low Bank 1a

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2077 fault code indicates a problem with the Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit for Bank 1a. The IMT system is responsible for optimizing the airflow into the engine, enhancing performance and fuel efficiency. When the sensor detects low voltage or a malfunction in the signal, it triggers this error code.

What are the symptoms of the P2077 code?

Vehicle symptoms associated with the P2077 code may include:

• Decreased engine performance and power
• Poor fuel economy or increased fuel consumption
• Rough idle or stalling issues
• Check Engine Light (CEL) illuminated on the dashboard
• Possible hesitation during acceleration.

What causes the P2077 code?

Common causes of the P2077 code may include:

• Faulty IMT valve position sensor
• Wiring issues such as short circuits or open circuits
• Poor electrical connections or corroded connectors
• Faulty engine control module (ECM)
• Problems in the intake manifold or related components.

How to fix P2077?

To resolve the P2077 code, consider the following steps:

• Inspect the IMT valve position sensor for damage and replace if necessary.
• Check the wiring and connectors for any signs of wear, corrosion, or disconnection and repair as needed.
• Clean or replace the IMT valve if it is sticking or operating improperly.
• Clear the fault code and perform a test drive to ensure the issue is resolved.