P2011 - OBD Trouble Code

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The trouble code P2011 can be elucidated as Intake Manifold Runner Control Circuit/Open Bank 2. It is the engine control module which would examine the intake manifold runner control. This trouble code would be set by the ECM when the intake manifold runner control circuit would not be as per the parameters set by the manufacturer.

This trouble code is generic, which would mean that it can apply to all the vehicles which are equipped with the OBD-II or the vehicles which are made since 1996 up to the present. The specifications on the definition, the troubleshooting steps as well as repairs can always vary from one vehicle make to another. The intake manifold runner control circuit is being monitored by the engine control module. When this code would be set, it would give rise to the illumination of the check engine light.

What causes this problem with the Intake Manifold Runner Control Circuit/Open Bank 2?

• Malfunctioning Intake Manifold Runner Control (IMRC) solenoid
• IMRC solenoid wiring harness might be unlocked
• IMRC solenoid circuit might have bad electrical connection
• IMRC solenoid connector might be abraded
• Malfunctioning IMRC butterfly valve plate screws
• Faulty IMRC butterfly valve plates
• IMRC butterfly valves plates might have disconnected from the IMRC actuator
• Vacuum control solenoid vacuum filter that is clogged
• Some issues related to the debris in the vacuum control solenoid
• Vacuum lines might be disconnected or sometimes broken
• There might be carbon build up on the IMRC butterfly valve plates

1. Intake Valve - Intake valve is a valve in the cylinder head of an internal-combustion engine that opens at the proper moment in the cycle to allow the fuel-air mixture to be drawn into the cylinder. Thus, replace it now!
2. Engine Control Module - Dead cells in batteries can cause a failure in the engine control module. Many times, a battery is left in the rig long after a cell has died. This would affect the grounding in the car battery.
3. Powertrain Control Module - If there are some faults in the PCM, then it may throw off the timing and fuel settings of the engine, which can negatively affect the performance. A flawed PCM may cause the vehicle to experience a reduction in fuel efficiency, power as well as acceleration.
4. Throttle Position Sensor - Are you experiencing sudden idle surges and sudden hesitation while accelerating? Then these are the symptoms of defective throttle position sensor. Get it checked and replace if needed
5. Electronic Control Unit - Do you know that the poor performance or unexplained drops in fuel economy or efficiency are often associated to onboard car computer problems, or defective ECU issues?
6. Diagnostic Tools - Use factory grade diagnostic tools to resolve OBD code P2011 error. Buy new diagnostic tools and equipment for us.

You might be thinking that how would you diagnose these problems? We at Parts Avatar Canada would help you diagnose the major symptoms easily.

Common Symptoms

• Visibility in the check engine light
• Diminishing fuel efficiency
• Declining engine performance
• There might be decline in low end engine torque
• Car might start running roughly

Looking out for some ways with the help of which you can correct this fault code? Then you have arrived at the correct place. We are here to help you out, so you must check out the steps mentioned below as follows:

• You must fix the defective IMRC butterfly valve plates
• Make sure to mend the faulty EGR valve
• It is essential to restore the flawed IMRC solenoid wiring
• Repair or replace the quirky IMRC solenoid circuitry
• Rehabilitate the defaults in the IMRC solenoid
• The malfunctioning mass airflow sensor should be repaired or replaced as per the need
• Carefully adjust the faults in the IMRC solenoid connector
• Recondition the non-functioning IMRC butterfly valve plate hardware

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Here are some steps which you should follow in order to diagnose this fault code:

• A technician begins by hooking the vehicle to an OBD-II scanner to verify that the code is present, and check for other codes.
• The freeze frame data along with current data is recorded, and the codes are then cleared to see if they reoccur.
• The diagnosis should be started by the visual inspection of system wiring as well as connector. An open circuit can be caused due to corrosion in the IMRC actuator connectors, so it is essential to pay attention to these.
• A scanner should be used by a professional technician to notice the freeze frame data, to assemble details about the code.
• The mechanic can also check to see if there is presence of additional trouble codes. Now if there are a number of codes, then they should be addressed in the same order in which they are appearing on the scanner.
• After that the mechanic should reset the trouble codes, restart the vehicle, and check to see if the code remains detected. If it does not, then the code was likely triggered incorrectly, or represents an intermittent issue.
• Now once the code is reset, access should be gained for IMRC actuator solenoid and IMRC runner position sensor. One can always consult a vehicle information source for checking recommendations for these constituents.
• A DVOM should be used to perform a resistance test on both constituents. If the actuator or the position sensor are not as per the specifications set by the manufacturer, then the faulty parts should be replaced and then retest the entire system once again.
• If the actuator resistance and sensor resistance are both as per the specifications set by the manufacturer, then a DVOM should be used to check the resistance and continuity on all system circuits.
• You can always avoid the controller damage; this can be done by disconnecting all related controllers before testing. Repair or restore the shorted or open circuits as per the requirements.
• Inspect the IMR flap binding with the actuator disconnected from the shaft. The screws or rivets that secure the flaps to the shaft may loosen or fall out causing the flaps to bind. Binding can be caused due to carbon coking inside the intake manifold walls.

Common Mistakes When Diagnosing The P2011 Code

• Misdiagnosing and replacing the IMRC solenoid
• Misdiagnosing and replacing the IMRC butterfly valve plates
• Mistake of overlooking faulty or disconnected vacuum lines
• Neglecting defective IMRC solenoid connector and wiring
• Replacing the IMRC butterfly valve plates when the issue was that they were not connected properly
• Neglecting to diagnose and restoring other EGR valve, MAF sensor, and BARO trouble codes before making any repairs for the P2011 trouble code.