Error Code P2012: What It Means & What To Do?

The engine control module, powertrain control module or the transmission control module monitors this circuit depending upon the particular automobile. This code would mean that the intake manifold runner is low on bank 2. The ECU controls the manifold runner and when it is found to be low, and then the P2012 code is triggered. It will also cause the check engine light to be displayed on the dashboard.

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

• Unsecured or binding intake manifold runners bank 2
• Malfunctioning IMRC actuator solenoid bank 2
• There can be inoperative intake manifold runner position sensor bank 2
• The wiring in the IMRC actuator solenoid control circuit might be opened or at times shorted
• Increase in carbon on the IMRC flaps or intake manifold ports
• Unusable MAP Sensor
• Dissolved IMRC actuator solenoid connector face

1. Engine Control Module – It is not always the components, but the ECM that can also be faulty. It can cause misinterpretation of correct data thus leading to wrong operational decisions which will affect the transmission and overall engine performance. Thus, replace faulty module and reprogram it now!
2. Throttle Position Sensor - Is there a sudden bucking as well as jerking in your automobile. Then in that case there is surely some fault in the throttle position sensor. Buy top notch throttle position sensor from us at economical prices.
3. Powertrain Control Module - Powertrain Control Module can also be faulty in rare cases and thus needs through checks for system and software errors. Thus check and replace it, if required.
4. Intake Valve – An Intake Valve is a spring action valve that is placed on a cylinder head of an internal combustion engine just next to the spark plug and exhaust valve. Its main purpose is to allow the proper amount of air-fuel mixture to enter inside the cylinder when the complete movement cycle of piston from TDC (top dead center) to BDC (Bottom Dead Center) and back to TDC takes place. Thus, replace damaged valve today!
5. Electronic Control Unit – The ECU manages the cooling system to control the battery operating temperatures and thus must be replaced, if found faulty. Thus, buy new ECU modules and components from us!
6. Diagnostic Tool – Make use of quality diagnostic tools to resolve any OBD error code. Buy quality diagnostic tools from us!
   

Willing to know some common symptoms of OBD Trouble Code P2012? Your wish is our demand. Have a look at them below:

Common Symptoms

• Visibility in the check engine light
• Issues related to hesitation upon acceleration
• Decrease in engine performance, especially during less RPM levels
• Automobile running roughly
• Declining fuel efficiency
• The car engine might surge

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P2012:

• Make sure to mend the faulty IMRC solenoid wiring
• Repair or replace the quirky mass airflow sensor
• Rehabilitate the defaults in the IMRC butterfly valve plates
• The malfunctioning IMRC solenoid circuit should be repaired or replaced as per the need
• Carefully adjust the faults in the EGR valve
• The IMRC butterfly valve plate hardware should be restored to working order
• Recondition the non-functioning IMRC solenoid connector
• It is necessary to perform proper service of the unsound IMRC solenoid

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If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:

You must always start with a technical service bulletin search for your particular vehicle. Advanced diagnostic steps become very vehicle specific and may require the appropriate advanced equipment and knowledge to perform accurately. We include basic steps below but refer to a vehicle year/make/model/powertrain specific repair guide for specific steps for your vehicle. 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. Check 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 P2012 Code

Here are some common mistakes which are made by the mechanics:

• A big mistake of overlooking faulty or disconnected vacuum lines
• Neglecting defective IMRC solenoid connector and wiring
• A common mistake of misdiagnosing and replacing the IMRC solenoid
• Misdiagnosing and replacing the IMRC butterfly valve plates
• Restoring 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 P2012 trouble code.

P2013 - Intake Manifold Runner Control Circuit High Bank 2