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P2020 is a diagnostic trouble code (DTC) for "Intake Manifold Runner Pos Sensor/Switch Circuit Range/Performance Bank 2". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
A P2020 code is a generic powertrain code related to the fuel and air metering and auxiliary emissions control systems. The Intake Manifold Runner Control (IMRC) controls are utilized to change or control airflow in the engine’s air intake system. If a P2020 code appears, it means the engine control module (ECM) has found a problem with the intake manifold runner control circuit in the engine’s bank 2 (or number 2 cylinder).
A P2020 code is related to:
The P2020 code appears when bank 2 (the engine bank with the number 2 cylinder) is receiving a voltage reading showing that the intake manifold runner flaps are out of position, or voltage or resistance readings from the solenoid are varying outside of allowed parameters.
A vehicle’s ECM utilizes several sensor readings to determine the position of the intake manifold runners to create air turbulence in the intake manifold. If the ECM does not detect the correct manifold air pressure variation, a P2020 code will be stored.
The P2020 code can be caused by a number of potential problems, including:
The symptoms of a P2020 code may include:
A mechanic will use a variety of methods to diagnose a P2020 code including:
One common mistake when diagnosing a P2020 code includes replacing the incorrect parts, such as a runner flap when the solenoid is the problem. Follow the proper procedures for correct diagnosis.
In addition, ensure you first diagnose any other intake/engine performance-related codes and check for any leaks before proceeding to diagnose a P2020, as a leak can cause the air/fuel ratio to present the incorrect possibility of a lean running engine.
Because mechanical failures in the IMRC can cause engine failure, this is considered a serious code. It is recommended to have your vehicle diagnosed and repaired immediately when this code appears.
Some manufacturers have issued technical service bulletins (TSBs) regarding the P2020 fault code, so it is recommended to always check for any associated bulletins before making any repairs.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.