P1426 Chevrolet 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 Chevrolet Description
Evaporative Emissions (EVAP) canister purge regulator valve in tank venting system or activation wire has a short circuit to ground.