P2008 Fault Code

Intake Manifold Runner Control Circuit/Open Bank 1a

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

The P2008 code indicates an issue with the intake manifold runner control (IMRC) system for Bank 1a. This system is responsible for optimizing the airflow into the engine by adjusting the position of the intake manifold runner. When the control circuit is open, it can lead to reduced engine performance and efficiency.

What are the symptoms of the P2008 code?

Symptoms associated with the P2008 code may include:

• Check Engine Light (CEL) illuminated
• Decreased engine power and acceleration
• Rough idling or stalling
• Unexpected engine noise
• Poor fuel economy

What causes the P2008 code?

Common causes of the P2008 code include:

• Faulty intake manifold runner control actuator
• Damaged or corroded wiring and connectors in the IMRC circuit
• A malfunctioning Engine Control Module (ECM)
• Vacuum leaks in the intake manifold
• Blockages in the intake manifold runner assembly

How to fix P2008?

To resolve the P2008 code, the following steps can be taken:

• Inspect the IMRC wiring and connectors for damage or corrosion and repair or replace as necessary.
• Test the intake manifold runner control actuator for proper operation and replace if faulty.
• Inspect for any vacuum leaks in the intake manifold or associated components and address them.
• Clear the code from the ECM and test drive the vehicle to see if the code returns. If it does, further diagnosis may be required.