OBD-II Code P2019: Intake Manifold Runner Position Sensor/Switch Circuit (Bank 2) – Causes, Symptoms, Fixes & How iCarsoft Helps
A P2019 code signals a problem with the Intake Manifold Runner Position Sensor/Switch Circuit on Bank 2. This fault commonly triggers the check engine light and may cause rough idle, sluggish acceleration, or reduced MPG. Intake runner systems help optimize airflow across RPM ranges, so when the sensor fails, drivability issues often follow. This guide explains what P2019 means, its common causes, repair costs, and how the iCarsoft CR MAX simplifies diagnosis.
❓ What does code P2019 mean?
Answer: OBD-II code P2019 is triggered when the ECM detects that the intake manifold runner position sensor (Bank 2) is not providing a valid or expected signal. This means the ECM cannot confirm flap movement or sensor feedback, leading to reduced engine efficiency.
Evidence: Factory manuals from Mercedes-Benz, VW, and BMW confirm P2019 is frequently related to carbon buildup, stuck flaps, or faulty runner motors. Technical service bulletins (TSBs) for VW/Audi 3.2L and 3.6L engines specifically mention P2019 as a known issue requiring intake manifold inspection or replacement.
❓ What causes code P2019?
- Carbon buildup restricting flap movement on Bank 2
- Faulty intake manifold runner position sensor
- Runner flap actuator/motor failure
- Mechanical flap breakage or sticking
- Wiring harness damage, shorts, or poor connections
- ECM software calibration errors
⚡ Common Causes & Repair Costs
| Cause | Estimated Repair Cost (USD) |
|---|---|
| Intake manifold cleaning (carbon removal) | $200 – $600 |
| Replace runner position sensor (Bank 2) | $150 – $400 |
| Replace runner actuator or motor | $300 – $800 |
| Repair/replace wiring and connectors | $100 – $300 |
| Intake manifold assembly replacement | $700 – $1,500+ |
🔧 How iCarsoft CR MAX Helps Diagnose P2019
The iCarsoft CR MAX helps technicians and DIYers verify the true cause of P2019 by offering advanced diagnostics:
- Read & clear P2019 and manufacturer-specific codes
- Command and test runner flap actuators directly
- Show live data: flap position feedback, actuator duty cycle, airflow sensors
- Access TSBs, freeze-frame data, and service resets
- Support 40+ car brands including VW, Audi, Mercedes, BMW, Ford, GM, Toyota
Pro tip: On VW/Audi engines, check both Bank 1 (P2018) and Bank 2 (P2019) when one code appears. Often, both sides suffer from the same intake flap or actuator issues.
Checking P2019 Intake Manifold Runner Circuit fault
❓ FAQ: Code P2019
Q: Can I drive with P2019 active?
A: Yes, but performance and fuel economy will be reduced. Ignoring it for too long may damage the intake system or cause further carbon accumulation.
Q: Does P2019 mean I need a new intake manifold?
A: Not always. Some engines allow sensor or actuator replacement separately, but many VW/Audi designs require replacing the full manifold if flaps fail.
Q: Is P2019 more common than P2018?
A: They are related. P2018 usually refers to Bank 1, while P2019 refers to Bank 2. Both are common in engines with dual intake runner banks.
Q: Can cleaning solve P2019?
A: Yes, if buildup is the issue. Carbon cleaning may restore full flap operation without replacing parts, especially on higher-mileage vehicles.
Q: Which vehicles commonly report P2019?
A: VW Passat, Audi A6, BMW 5-series, Mercedes E-class, and some Ford V6 models are among those most frequently affected.
