What Does the Engine Code P2006 Mean?

If engine code P2006 appears on your dashboard, it’s an intake manifold runner control that is stuck closed.
Written by Talullah Blanco
Reviewed by Melanie Reiff
If your car is showing the engine code P2006, your intake manifold runner control flap for engine bank 1 is stuck closed. 
  • A faulty IMRC flap should be fixed promptly to avoid further engine damage
  • It may cost between $400 and $600 to fix this problem
  • Diagnostic trouble codes should be confirmed by a repair shop

The engine code P2006 means the control flap on the intake manifold runner is stuck in the closed position

Definition: Intake manifold runner control stuck closed bank 1
The P2006 engine fault code indicates a problem with your car’s intake air process—specifically the manifold runner control flap for engine bank 1. The intake manifold runner control (IMRC) system improves the engine airflow process, which boosts engine performance and efficiency. 

It could cost hundreds of dollars to fix

If you need to repair or
replace your intake manifold runner
, total parts and labor can cost anywhere between $400 and $600

What can cause the P2006 engine code?

If the P2006 engine code is displayed on your OBD-II, your intake manifold runner control flap for engine bank 1 is probably stuck in the closed position. Other possible causes of this DTC include:
  • Faulty intake manifold runner control IMRC actuator
  • The intake manifold runner control actuator harness is open or shorted
  • Poor electrical control circuit connection
  • Faulty powertrain control module (PCM)

Common symptoms of the P2006 engine code

You might not see any visible symptoms accompanying the P2006 OBD-II trouble code other than a lit check engine light. You may notice other symptoms including:
  • Slow or sluggish acceleration 
  • Rough or fluctuating idle
  • Rich exhaust
  • Diminished fuel efficiency
  • Engine surge
If your intake manifold is stuck in the closed position, your car might start easily and accelerate smoothly, but after driving for a few minutes your engine will surge in speed or misfire. That’s due to carbon buildup.

The P2006 engine code is semi-serious 

The P2006 engine code affects your car’s driveability and should be dealt with promptly. If left unfixed, a closed intake manifold runner control flap tarnishes your engine’s airflow and fuel mixture leading to performance problems and further damage to your engine. 

The P2006 engine code is not a simple fix—only DIY if you have the skills

If you plan to fix the P2006 engine code yourself, it’s important that you properly diagnose the cause of the code before you attempt any repairs. Check the freeze frame data, and then inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connectors’ pins. 
Depending on the cause of the engine code, there are a number of repairs you may need to do including:
  • Wiring harness repair
  • Electrical connection fixed
  • Intake manifold runner position and position sensor fixed
  • Intake manifold runner control solenoid replaced
  • Intake manifold runner unclogged or replaced
  • Intake manifold runner control flap replaced
If you are not sure what is causing the P2006 engine code,
take your car to a mechanic
for a diagnostic inspection and repairs. 

How to replace the intake manifold runner control 

If you decide to replace the intake manifold runner at home, you’ll need to follow these steps:
  • Locate the intake manifold runner control in your engine. You might have to remove a few plastic covers before you see it. 
  • Disconnect the intake manifold runner control. You may need to disconnect the vacuum lines and electrical connections to do this.
  • Replace the old intake manifold runner control with the new one. To do this you’ll need to unbolt the IMRC from the engine.
After you’ve properly replaced the intake manifold runner control, clear any codes on the engine computer and test drive your car to evaluate its performance.
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