P2018 Buick Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1
Possible causes
– Manifold flow valve harness is open or shorted
– Manifold flow valve circuit poor electrical connection
– Faulty Manifold flow valve
– Intake manifold
– Faulty Powertrain Control Module (PCM)
– Manifold flow valve circuit poor electrical connection
– Faulty Manifold flow valve
– Intake manifold
– Faulty Powertrain Control Module (PCM)
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
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