Intake Manifold Runner Position Sensor/Switch Circuit (Bank 2)
The P2020 code means the vehicle's onboard diagnostic system has detected: Intake Manifold Runner Position Sensor/Switch Circuit (Bank 2). This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $100 - $350 (parts and labor)
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Common Symptoms
- Check Engine Light on
- Engine performance issues
- Rough or unstable idle
- Hesitation during acceleration
- Decreased fuel efficiency
Probable Causes (Ranked by Likelihood)
- Faulty Bank 2 intake manifold runner position sensor Very High
- Wiring open or short in sensor circuit High
- Corroded sensor connector Moderate
- Carbon buildup restricting runner movement Moderate
- PCM internal fault Low
Frequently Asked Questions
What does P2020 mean?
P2020 indicates a general malfunction in the Bank 2 intake manifold runner position sensor circuit, meaning the PCM cannot determine runner flap position accurately.
Can I drive with a P2020 code?
Yes, driving short distances is safe. Expect minor performance issues as the PCM uses default runner positions.
How much does it cost to fix P2020?
Repairs generally cost $100 to $350, typically involving sensor replacement or wiring repair.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
-
Confirm P2020 with scan tool and freeze frame data
-
Inspect Bank 2 runner position sensor and connector
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Monitor sensor signal while commanding runner actuator
-
Check wiring continuity between sensor and PCM
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
Commonly Affected Vehicles
- 2012-2018 BMW 328d 2.0L Diesel
- 2010-2016 Mercedes-Benz ML350 3.0L BlueTEC
- 2014-2020 Ram 3500 6.7L Cummins
- 2011-2017 Ford F-350 6.7L Power Stroke
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