Intake / Swirl FlapsLow ImpactPetrol
P2004 — Intake Manifold Runner Control Stuck Open (Bank 1)
The intake manifold swirl flap actuator position does not match the commanded position.
3+
Affected Brands
9+
ECU Platforms
1
Related Services
1
Related DTCs
Symptoms
What the driver typically experiences when P2004 is stored
!Check Engine Light
iSlightly reduced low-end torque
iNo major drivability impact
Why does P2004 appear after tuning?
Common after swirl flap deletion or deactivation when the actuator monitoring is not fully recalibrated.
How proper calibration can address P2004
WEREMAP swirl flap deactivation includes complete actuator monitoring and diagnostic routine deactivation.
Related Tuning Services
Relevant services for the system behind P2004
DTC Off
Related Diagnostic Codes
Codes from the same diagnostic system as P2004
Affected ECU Platforms
Bosch MED9.1Siemens/Continental SIMOS18Bosch MED17.5Bosch ME9.7Bosch ME9.1.1Bosch MED9.1.1Siemens/Continental Simos12.2Delco E87Siemens/Continental SIMOS8.4
Commonly Affected Vehicles
VWGolfSiemens/Continental SIMOS18
VWCoccinelle / New BeetleSiemens/Continental SIMOS18
AudiA3Siemens/Continental SIMOS18
VWJettaSiemens/Continental Simos12.2
OpelAstraDelco E87
AudiS4Siemens/Continental SIMOS8.4
Based on data from 3+ vehicle brands. P2004 is not limited to these models.
Frequently Asked Questions
What does P2004 mean?â–¼
The intake manifold swirl flap actuator position does not match the commanded position.
Why does P2004 appear after ECU tuning?â–¼
Common after swirl flap deletion or deactivation when the actuator monitoring is not fully recalibrated.
How do you prevent P2004 during remapping?â–¼
WEREMAP swirl flap deactivation includes complete actuator monitoring and diagnostic routine deactivation.
Which vehicles are affected by P2004?â–¼
P2004 is commonly found on VW, Audi, Opel vehicles equipped with Bosch MED9.1, Siemens/Continental SIMOS18, Bosch MED17.5, Bosch ME9.7 ECU platforms.
What other codes appear alongside P2004?â–¼
P2004 frequently appears together with P2015. These related codes typically originate from the same system modification and should be addressed together in the calibration.
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