The P2021 fault code in automobiles indicates a problem with the Intake Manifold Runner Position SensorSwitch. The most common symptom is the illumination of the Engine Light or Service Engine Soon Warning Light. The cause of this issue could be a faulty sensorswitch, an open or shorted harness, poor electrical connection, or mechanical concerns like bind, seize, damage, or obstruction of IMRC hardware.

The importance of repairing this issue lies in the fact that it affects the engine’s performance and fuel efficiency. The repair difficulty is moderate, and the fix involves visually inspecting the wiring harness and connectors, checking for damaged components, and looking for broken, bent, pushed out, or corroded connector’s pins. The repair time is estimated to be around 1.0 hour.

To interpret the fault code, one needs to use an OBD-II scanner or code reader.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you notice the Engine Light ON or Service Engine Soon Warning Light, it could be a sign of p2021 fault code.

Here are the symptoms to look out for:

  • The P2021 fault code in an automobile can cause the following symptoms: Engine Light ON, Service Engine Soon Warning Light, rough idling, poor acceleration, decreased fuel efficiency, engine stalling, and difficulty starting the engine.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe driving.

The automobile fault code P2021 can be caused by various factors, including faulty sensors, poor electrical connections, and mechanical concerns.

  • The automobile fault code P2021 can be caused by a faulty Intake Manifold Runner Position Sensor/Switch.
  • It can also be caused by an open or shorted harness of the Intake Manifold Runner Position Sensor/Switch.
  • Poor electrical connection in the Intake Manifold Runner Position Sensor/Switch circuit can also trigger this fault code.
  • Additionally, mechanical concerns such as bind, seize, damage, or obstruction of IMRC hardware can cause the P2021 fault code to appear.

To fix the p2021 automobile fault code, check the possible causes and inspect the related wiring harness and connectors for any damage or corrosion.

  • To fix the automobile fault code p2021, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors.
  • Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • Ensure that all the connections are secure and free of corrosion.
  • This repair should take approximately 1.0 hour.

The fault code P2021 indicates a problem with the evaporative emission control system pressure sensor. The estimated repair time for this issue is 1.0 hour. The cost of fixing this issue can vary depending on the auto repair shop, but it is common for them to charge between $75 and $150 per hour.

Other factors that may influence the cost include the severity of the issue, the type of vehicle, and the location of the repair shop.

The P2021 code is related to the Intake Manifold Runner Control (IMRC) system. It is monitored for failure during continuous or Key On Engine Off (KOEO) self-test.

The code sets when the Powertrain Control Module (PCM) detects a mechanical fault in the IMRC system. P2021 code specifically indicates a problem with the Intake Manifold Runner Position SensorSwitch Circuit Low Bank. This means that the system has detected a broken or persistently out of range linkage in the corresponding bank for IMRC actuator assemblies with dual monitor switches.

What are the possible causes of the P2021 fault code?

If you’re experiencing the P2021 fault code, your engine light may be on. This could be due to a faulty Intake Manifold Runner Position Sensor/Switch, an open or shorted harness, poor electrical connection, or mechanical concerns such as bind, seize, damage, or obstruction of IMRC hardware. To fix the issue, visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

How can I visually inspect the wiring harness and connectors related to the P2021 fault code?

If you’re experiencing an Engine Light ON or Service Engine Soon Warning Light due to the P2021 fault code, you can visually inspect the related wiring harness and connectors to fix the issue. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. Also, make sure to check the possible causes listed above, including a faulty Intake Manifold Runner Position Sensor/Switch, open or shorted harness, poor electrical connection, or mechanical concerns like bind, seize, damage, or obstruction of IMRC hardware.

What are the consequences of ignoring the P2021 fault code?

Ignoring the P2021 fault code, which indicates a faulty Intake Manifold Runner Position Sensor/Switch, can lead to serious consequences. The engine light will remain on, indicating a problem, and the vehicle may experience reduced performance, decreased fuel efficiency, and potential damage to the engine. It is important to check the possible causes, visually inspect the wiring harness and connectors, and look for damaged components to avoid further issues.

p2021 error fault code explained

If your engine light is on, it could be due to a faulty intake manifold runner position sensorswitch, open or shorted harness, poor electrical connection, or mechanical concerns.

To fix it, visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

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