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Powertrain

P2020

Code meaning and manufacturer information

OBD-II / DTC

Reference meaning

What does this code mean?

The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.

A code identifies a detected condition, not a part that must automatically be replaced.

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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Before replacing a part

Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.

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Manufacturer communications

2

Original wording in English

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AUDI

MIL light on. P2015 sender of intake manifold flap position/air flow control, implausible signal P2020 sender of intake manifold flap position, intake manifold flap 2, implausible signal. Engine may have reduced performance without significant loss of power or stalling. Check service history to see if the improved ? B? suffix V1…

012012 ↗

MERCEDES-BENZ

ENGINE VIBRATING, RPM FLUCTUATIONS AT IDLE OR POOR ACCELERATOR RESPONSE WITH CODES P2020, P0172, P2046, P201C OR P201A IN THE ENGINE CONTROL UNIT. MODEL C230CL. *TT UPDATED 1/30/08. *NJ

Check vehicle applicability

19

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

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MakeModelModel year
AudiA6 ↗2009
AudiA6 ↗2008
AudiA6 ↗2007
AudiA8 ↗2009
AudiA8 ↗2008
AudiA8 ↗2007
AudiQ7 ↗2009
AudiQ7 ↗2008

Can I keep driving?

A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.