P1030 Buick Intake Manifold Air Control Valve Position Sensor Lower Limit Not Reached

P1031 Buick Intake Manifold Air Control Valve Position Sensor Specification Not Attained

Possible causes
– Faulty intake manifold air control solenoid
– Intake manifold air control solenoid harness is open or shorted
– Intake manifold air control solenoid circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano – Buick Enclave – Buick Encore – Buick Rainier – Buick Rendezvous – Buick Terraza – Buick Riviera