Powertrain, generic (extended)

P2005 Intake Manifold Runner Control Stuck Open (Bank 2)

Check engine lightOn

EmissionsRelevant

Drive cycleRequired

Limp modePossible

P2005 is the bank 2 version of the stuck-open check, so it only exists on V and boxer engines with a flap set per cylinder bank. The ECM has commanded the flaps on bank 2 closed, but the position feedback says they stayed open. Ford runs it on vacuum-operated V engines once coolant is above 40 °F and logs it after four failed events; on the 2017–2019 Super Duty 6.2L Ford found cracked vacuum hoses on the manifold and supplies the hoses alone instead of a new manifold. Audi links P2005 on the 4.0 TFSI (A8, S6, S7, RS 6, RS 7) to moisture in the flap potentiometer and fits a repair kit on both banks; the engine may be held to 4,000 rpm. Subaru names it on Forester Turbo and WRX, where EGR condensate corrodes the tumble valve shaft. Open flaps mostly cost low-speed torque and smooth idle.

Likely causes

Cracked or loose vacuum hose to the bank 2 flap actuator

Moisture in the flap potentiometer giving a false position (Audi 4.0 TFSI)

Flap shaft corroded or seized in the open position

Torn diaphragm in the vacuum actuator

Symptoms

Malfunction indicator lamp on
Less pulling power at low engine speed
Rpm limit on some Audi V8 engines

Repair estimate

DifficultyMediumDIY possible

Parts and labour€20–900

Time0.3–4 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

intake manifold runnerimrc actuator

Related codes

P2004 P2007 P2011 P2020 P200B

References: fordservicecontent.com, newtonnet.co.uk, static.nhtsa.gov, static.nhtsa.gov.