P2010 Fault Code

Intake Manifold Runner Control Circuit High Bank 1a

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

The P2010 fault code indicates a problem with the Intake Manifold Runner Control (IMRC) circuit for Bank 1a. This system is designed to optimize the intake manifold's airflow and enhance engine performance through variable runner length, aiding in both low-end torque and high-end power. When the circuit is detected as 'high,' it often suggests that there is a short circuit or an open circuit within the IMRC wiring or connectors.

• The IMRC may be electronically controlled, using a motor to adjust the manifold runners based on engine demand.
• Issues can arise from a failed IMRC actuator, wiring problems, or a malfunctioning Engine Control Module (ECM).

What are the symptoms of the P2010 code?

Common symptoms associated with the P2010 code may consist of:

• Illuminated Check Engine Light.
• Decreased engine performance, especially during acceleration.
• Rough idling or misfires.
• Possible vibrations or unusual noises from the engine.
• Poor fuel economy due to inefficient intake airflow.

What causes the P2010 code?

The primary causes for the P2010 fault code can include:

• A failed IMRC actuator.
• Damaged, frayed, or corroded wiring or connectors.
• Problems with the ECM failing to send the correct signals.
• Accumulation of carbon build-up in the intake manifold.
• A faulty throttle body affecting intake air control.

How to fix P2010?

To resolve the P2010 fault code, consider the following steps:

• Inspect the IMRC actuator and wiring harness for damages or loose connections.
• Replace the IMRC actuator if it is found to be faulty.
• Clean the intake manifold to remove any carbon deposits that may be affecting operation.
• Check and reset any stored trouble codes in the ECM after repairs to see if the issue is resolved.
• If all else fails, consult a professional to investigate potential ECM issues.