Worn or seized flap shaft or bushings due to carbon deposits; Broken actuator linkage; Faulty position sensor or actuator; Wiring or connector problems.

Swirl flaps

P2015 Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (Bank 1)

The ECU compares the flap position reported by the intake manifold runner position sensor with the commanded position. P2015 is set when the reported position is implausible or outside the expected range.

Common causes

Worn or seized flap shaft or bushings due to carbon deposits
Broken actuator linkage
Faulty position sensor or actuator
Wiring or connector problems

Typical symptoms

Check engine light (MIL) on
Rough idle or hesitation
Reduced power or limp mode on some vehicles

P2015 and NuoVolta

If the swirl or tumble flaps have been removed or blanked for off-road or motorsport use, where permitted by law, the NuoVolta Flaps / Swirl Removal solution adjusts the ECU calibration and the DTC removal feature can disable this code. On a fitted system, check the flap mechanism for wear before any software change.

Flaps / Swirl Removal Available for 121 ECUs

Related codes

P2004Intake Manifold Runner Control Stuck Open (Bank 1) P2008Intake Manifold Runner Control Circuit/Open (Bank 1)

Diagnose and repair real faults first. Removing or disabling emission systems is only permitted where allowed by law, for example for off-road or motorsport use.