Posts Tagged: P0449 Equinox

Fix P0449 Chevrolet Equinox

February 3, 2018

Fix P0449 Chevrolet Equino Diagnose and fix code P0449 Chevrolet Equinox A P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit means there’s a problem with the vent solenoid or the circuit to the solenoid. Don’t just assume that you have a bad vent solenoid. Check the circuit first. Here’s how P0449 Circuit Description Battery voltage is applied to the EVAP emissions (for more information on EVAP systems, read this post) charcoal canister vent solenoid valve. When the ECM conducts a purge cycle to remove gas vapors from the charcoal canister, … Read More