P2006 on Mazda
Intake Manifold Runner Control Stuck Closed (Bank 1)
P2006 on Mazda vehicles indicates intake manifold runner control stuck closed (bank 1). Au7o has documented this code across 1 Mazda model — most commonly on CX-7. This code means the intake manifold runner control on Bank 1 is stuck in the closed position. Many engines use small flaps inside the intake manifold that open and close to optimize airflow for low-speed torque versus high-speed power, and an actuator moves them while a position sensor confirms their movement. When the computer commands the runners open but they stay closed (or the feedback says they're stuck), it sets this code. You may notice rough idle, hesitation, reduced power at higher RPM, or lower fuel economy. Typical repair costs on Mazda range from $150 to $600, depending on the specific model and root cause.
Common Causes of P2006
- •Carbon buildup jamming the intake runner flaps
- •Failed intake manifold runner control actuator/motor
- •Stuck or broken runner flap linkage or flaps
- •Faulty runner position sensor
- •Disconnected or leaking vacuum line (vacuum-actuated systems)
- •Damaged or corroded actuator wiring/connector
- •Failed intake manifold (warped or broken internal components)
P2006 on Mazda by Model
Mazda CX-7(1 issue)
- 2.5L Intake Manifold Runner (Variable Tumble) Actuator Clip Breakage - P20062010-2012
The naturally aspirated 2.5L L5-VE fitted to the CX-7 from 2010 uses a variable tumble / intake manifold runner system: a vacuum-or-solenoid-driven actuator swings a shaft that closes flaps in the intake runners at low load. The plastic clip that the actuator arm pushes against snaps off the shaft. With the clip gone the actuator strokes freely, the runner shaft never moves, the position sensor never sees the commanded change, and the ECU sets P2006 - 'intake manifold runner stuck closed'. Owners chase this for weeks because every electrical test passes: the solenoid is good, the wiring is good, the vacuum lines hold. One CX-7 owner methodically tested the tumble solenoid, the vacuum lines and the ground circuits before another member identified the broken plastic clip, calling it 'very common, very bad engineering design by Mazda.' This is specific to the 2.5L non-turbo body - it is not a 2.3 DISI turbo failure.
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What does P2006 mean on Mazda?▼
P2006 stands for "Intake Manifold Runner Control Stuck Closed (Bank 1)." This code means the intake manifold runner control on Bank 1 is stuck in the closed position. Many engines use small flaps inside the intake manifold that open and close to optimize airflow for low-speed torque versus high-speed power, and an actuator moves them while a position sensor confirms their movement. When the computer commands the runners open but they stay closed (or the feedback says they're stuck), it sets this code. You may notice rough idle, hesitation, reduced power at higher RPM, or lower fuel economy. On Mazda specifically, this code is documented across 1 model.
What causes P2006 on Mazda vehicles?▼
Common causes on Mazda: Carbon buildup jamming the intake runner flaps, Failed intake manifold runner control actuator/motor, Stuck or broken runner flap linkage or flaps, Faulty runner position sensor, Disconnected or leaking vacuum line (vacuum-actuated systems). Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P2006 on a Mazda?▼
Repair costs on Mazda range from $150 to $600, depending on the specific model and root cause.
Which Mazda models have P2006 documented?▼
Au7o has documented P2006 on 1 Mazda model: CX-7.