P0449 OBD Trouble Code

2 results found

P0449 - Generic
Type Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled
Description

Evaporative Emission System Vent Valve/Solenoid Circuit
P0449 - GM
Type Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled
Description

EVAP Vent Solenoid Control Circuit Conditions
Cause

Engine speed over 600 rpm, system voltage from 6-18v, then the PCM detected that the Actual and Commanded state of the Vent Control solenoid control circuit did not match for over 5 seconds.

Try also: https://www.obd-codes.com/p0449