P2021
Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2
P2021 is an OBD-II diagnostic trouble code meaning: Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2. Common causes: malfunction of the intake manifold flap position sensor, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unstable engine idling
- The engine goes into emergency mode
Causes
- Malfunction of the intake manifold flap position sensor
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Wiring harness damage
- Problems with the engine control unit
How to Fix
- Check the integrity of the sensor circuit
- Inspect connectors and contacts for oxidation or damage
- Check sensor resistance and reference voltage
- Replace the damper position sensor if necessary
- Clean or replace damaged wires
Related codes
Error P2021 by Vehicle Brand
FAQ
What does the P2021 code mean?
P2021 is an OBD-II diagnostic trouble code that indicates: Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2
What causes a P2021 error code?
The most common causes of P2021 include: Malfunction of the intake manifold flap position sensor; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring harness damage.
How do I fix a P2021 diagnostic trouble code?
To fix P2021: Check the integrity of the sensor circuit. Inspect connectors and contacts for oxidation or damage. Check sensor resistance and reference voltage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2021?
Limited driving only, diagnose soon
How much does it cost to fix P2021?
The estimated repair cost for P2021 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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