P0449 Evap Purge Vent Solenoid Circuit Condition Gm

Author: topic: p0449 evap vent solenoid (read 67991 times) 0 members and 1 guest are viewing this topic..Evaporative emission control system vent valve/solenoid circuit malfunction. what does that mean? this code is a generic powertrain code. it is considered generic.P0449 evaporative emission control system vent valve/solenoid circuit malfunction century car forums. Trouble code p0449 definition: evap (evaporative emission system) purge/vent solenoid circuit malfunction. probable causes 1- purge or vent solenoids defective. The engine control module (ecm) has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.. I recently had my check engine light (cel) come on in my 2006 chevrolet silverado. i read the code and it was a p0449 evaporative emission (evap) vent solenoid. Dtc p0449 evaporative emission (evap) vent solenoid control circuit. circuit description. an ignition voltage is supplied directly to the evap vent valve relay coil.. 2002 chevy silverado 4.8l with a p0449 evap vent solenoid trouble code. for more info. see www.autocomputerstroubleshooting.com..The engine control module (ecm) has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system..