P0627 Chevrolet Fuel Pump Control System Malfunction

Possible causes

– Faulty fuel pump relay
– Fuel pump harness is open or shorted
– Fuel pump circuit poor electrical connection
– Faulty fuel pump control module (if applicable)

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P0627 Chevrolet Description

The Engine Control Module (ECM) has detected an open or short in the fuel pump relay circuit.