P2006 Intake runner control stuck closed (bank 1)

Intake manifold runner control stuck closed, bank 1

Severity not verified — if the car runs badly, have it inspected

TroubleCodes.net lists the light and possible rough idle, hesitation or power loss, but no source rates how safe it is to drive. A Dodge Caliber owner said the car drove fine.

It gets more serious if:

  • Inspect soon: Inspect soon if idle is rough or power is down, which TroubleCodes.net lists.

Source: how we rate severity

P2006 in short

P2006 means the intake runner control on bank 1 stays closed when the computer commands it open. A faulty actuator, vacuum line, wiring or position sensor, or carbon on the flaps, can cause it. You may notice only the light, or rough idle and weaker power. Have it checked before it gets worse.

Some engines have flaps or valves in the intake manifold that change airflow with engine speed. The computer commands them and watches a position signal. If the signal says closed when it should be open, it sets P2006.

TroubleCodes.net lists wiring, cracked vacuum lines, a defective actuator or position sensor, carbon on the flaps and rarely the computer.

Mazda has bulletins and an emission recall for P2006 on the Mazda3, 5, 6 and CX-7 (a shutter valve that cannot fully close), and Volkswagen Group names runner control valve N316 for P2006 on 2021 to 2024 models.

Most likely causes

  1. Runner control actuator or valve failed

    Common general cause
    Why it ranks here
    TroubleCodes.net lists the actuator or solenoid, and Volkswagen bulletin V0124032073665_3 replaces valve N316 for P2006 on 2023 to 2024 Golf R, GTI and Arteon.
    What would change this
    Rises if the actuator does not move when commanded. Falls if it moves freely.

  2. Wiring fault or leaking vacuum line

    Common general cause
    Why it ranks here
    TroubleCodes.net lists wiring and vacuum lines.
    What would change this
    Rises if wiring or lines test faulty. Falls if good.
    How to test the vacuum hoses and intake leaks

  3. Carbon on the flaps preventing free movement

    Common general cause
    Why it ranks here
    TroubleCodes.net lists carbon deposits but says they usually bring a range code as well.
    What would change this
    Rises if flaps stick when moved by hand. Falls if they move freely.

  4. Shutter valve cannot fully close (Mazda recall and bulletin)

    Supported by vehicle data
    Why it ranks here
    Mazda bulletin 01-024/08 and recall-related bulletin 09012007 name P2006 on the Mazda3, 5, 6 and CX-7. Summaries only.
    What would change this
    Rises on a covered Mazda. Falls elsewhere.

What to test first

Start at step 1. Each result tells you what it means and where to go next.

  1. Read all codes and freeze-frame data; fix other manifold or air-flow codes first.

    Low riskTool: OBD-II scan tool

    • IfOther runner or air-flow codes

      It meansDiagnose them first.

      Go to step 2

    • IfP2006 alone

      It meansInspect the actuator, hoses and wiring.

      Go to step 2

  2. Inspect the actuator linkage, vacuum lines and wiring at the intake manifold with the engine off.

    Use caution

    Warning:Keep away from belts and fans.

  3. Command the runner actuator with a scan tool and watch the position signal; ask a dealer about recalls or bulletins for your model.

    Best left to a shopTool: scan tool with bidirectional control

    Warning:Needs a professional shop with the right scan tool and wiring diagrams; do not guess at this step.

Symptoms

  • Check engine light on
  • Rough or fluctuating idle
  • Hesitation or weaker power at some speeds Gets more serious: stop and have it checked.

How to fix

  1. Check for open recalls using your VIN, since Mazda ran an emission recall tied to P2006.

On your vehicle

Mazda

  • 2006–2007 · Mazda6

    Supported by vehicle data

    Mazda emission recall campaign 4807H with bulletin 09012007 covers P2006 on Mazda6 and CX-7. Verify the recall status by VIN.

  • 2004–2008 · Mazda3

    Supported by vehicle data

    Mazda bulletin 01-024/08 covers P2006 (tumble shutter valve cannot close) on Mazda3 and Mazda5.

  • 01-024/08Status unverified

    MIL with P2006, variable tumble shutter valve cannot close

    2004–2008mazda3, mazda5 · NHTSA 10024863

    NHTSA summary only.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 09012007Status unverified

    MIL with P2006, voluntary emission recall 4807H and 4907H

    2006–2007mazda6, cx-7 · NHTSA 10023192

    NHTSA summary only.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Volkswagen

  • 2023–2024 · Golf R

    Supported by vehicle data

    Volkswagen bulletin replaces runner control valve N316 for P2006 and related codes on Golf R, GTI and Arteon.

  • V0124032073665_3Status unverified

    Engine light with P2004, P2006, P2014 or P2015, replace runner control valve N316

    2023–2024golf-r, gti, arteon · NHTSA 11029309

    NHTSA summary only.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Dodge

  • 2007 · Caliber

    Possible — needs testing

    One owner had P2006 (runner stuck closed) with P1607, P0722 and P0717; the car drove fine. Single complaint.

  • P2004The engine computer has found that the intake manifold runner control on bank 1 is stuck open or not closing when commanded

    Shares causes Supported by vehicle data

    Volkswagen bulletin V0124032073665_3 lists P2004 and P2006 together for valve N316.

  • P2005Intake runner flaps stuck open on bank 1

    Other bank Possible — needs testing

    P2005 is the bank 2 stuck-open counterpart in the same intake runner system.

All Intake manifold runner control codes

P2006 questions

Can I drive with P2006?

Often, as a Caliber owner did, but rough idle or lost power means getting it checked soon.

Sources and review

  1. P2006 intake manifold air control actuator, bank 1, stuck closed — TroubleCodes.net
  2. Volkswagen bulletin V0124032073665_3: engine light with P2004, P2006, P2014 or P2015, replace intake manifold runner control valve N316 — Volkswagen
  3. Mazda bulletin 01-024/08: MIL with P2006, variable tumble shutter valve cannot completely close, 2004-2008 Mazda3/5 — Mazda
  4. Mazda bulletin 09012007: MIL with P2006, voluntary emission recall 4807H and 4907H — Mazda
  5. NHTSA complaint ODI 10726213, 2007 Dodge Caliber: Advance Auto readout P2006 intake manifold runner stuck closed, part already changed — NHTSA
Last reviewed
Written by
Saurabh K.
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