P2174 Buick Low Airflow/Restriction Detected Instantaneous Accumulation
Possible causes
– Restricted air inlet
– Open or short circuit condition
– Failed Manifold Absolute Pressure (MAP) sensor
– Failed Throttle Position (TP) sensor
– Open or short circuit condition
– Failed Manifold Absolute Pressure (MAP) sensor
– Failed Throttle Position (TP) sensor
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P2174 Buick Description
The calculated Manifold Absolute Pressure (MAP) value is greater than the expected MAP value
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