P1426 Buick Tank Ventilation Valve Open Circuit
Possible causes
– Faulty EVAP Canister Purge Regulator Valve
– EVAP Canister Purge Regulator Valve harness is open or shorted
– EVAP Canister Purge Regulator Valve circuit poor electrical connection
– EVAP Canister Purge Regulator Valve harness is open or shorted
– EVAP Canister Purge Regulator Valve circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1426 Buick Description
Evaporative Emissions (EVAP) canister purge regulator valve in tank venting system or activation wire has a short circuit to ground.
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