The Check Engine Light may illuminate with a stored code P2006. This is most often caused by a sticking intake manifold runner control (IMRC) valve. Our technicians tell us that depending on your vehicle the valve may require replacement and/or the powertrain control module (PCM) software will require upgrading.
Check Engine Light Due to Faulty Intake Manifold Runner Control Valve on Mazda MAZDASPEED6
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Intake manifold Shutter valve malfunction. needs to replace entire manifold. $1500 part and labor