P2020 - OBD II Trouble Code

January 31, 2017

Our automotive experts have put together the following information about the P2020 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P2020 code.

OBD II Fault Code

  • OBD II P2020

OBD-II Code Powertrain Control Module (PCM) failure is defined as a Intake Manifold Runner Position Sensor/Switch Circuit

The Intake Manifold Runner allows more air to flow through the intake at higher RPMs. If the Intake Manifold Runner does not operate as requested, P2020 will be set.

Common Problems That Trigger the P2020 Code

  • Intake manifold runner control actuator failure
  • Powertrain Control Module (PCM) failure
  • Restricted vacuum lines

About the Author

Brad Kava is an automotive expert at RepairPal, the leading online source of auto repair resources and estimates. With many ASE Master certified mechanics on staff who have decades of experience, RepairPal knows all the fine points of car repair.

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