OBDII code P0449 indicates a problem with the evaporative emissions control (EVAP) vent circuit, specifically that the circuit is reading low voltage or an open circuit. This can be caused by issues such as a faulty vent valve, damaged wiring, or poor connections in the EVAP system. The code typically triggers a check engine light and may lead to increased emissions. Addressing this issue often involves inspecting the vent valve and related components for faults or damage.
Evaporative emission system purge control valve circuit
P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction
usually this means the gas cap is not on tight or is leaking
To fix a 2007 Suburban OBDII code related to the evaporative emissions control vent solenoid, first inspect the solenoid for any visible damage or disconnections. If it's defective, replace it with a new unit. Additionally, check the associated wiring and connectors for corrosion or breaks. After making repairs, clear the code with an OBDII scanner and monitor for any reoccurrence.
I t means you have something wrong with your emissions. Check the hose that goes from the Evap Valve (usually a round plastic valve) to Throttle body. Maybe is too soft and when there is a vacuum it clogges.
AnswerP0442 evaporative emissions control system leak detected see "What are OBDII codes and their meanings?"you can also go to www.obd-codes.com for a list of several codes on different models hope this helps- steph
Large evaporative emissions vapor leak. Check gas cap and all hoses from the engine to the gas tank.
Evaporative Emission System High Purge Flow. Relates to your vehicles OBDII compliant system for monitoring vehicle emissions.
P0440 OBDII code is for evaporative emissions control system failure.. check your gas cap though, many times a loose gas cap is the culprit with this code, hope this helps some1 out.
Check every rubber hose from the engine to the fuel tank.
OBDII code P1459 in a Ford Escape indicates a problem with the evaporative emission control system, specifically related to the fuel tank pressure sensor or its circuit. This code typically suggests that the fuel tank pressure is outside the expected range, which can be caused by a faulty sensor, wiring issues, or a leak in the EVAP system. It's important to diagnose the exact cause to prevent potential fuel vapor leaks and ensure the proper functioning of the vehicle's emissions system.
Trouble code P0445 means:Evaporative emission control systempurge control valve circuit shorted