Possible causes – Faulty EVAP Purge Solenoid– EVAP Purge Solenoid harness is open or shorted– EVAP Purge Solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1655 CHEVROLET OBD Code Description The Powertrain Control Module (PCM) has detected an improper voltage level on the output driver module for…