P0449 is a diagnostic trouble password (DTC) because that "Evaporative Emission manage System Vent Valve/Solenoid Circuit Malfunction". This can take place for multiple reasons and also a mechanic demands to diagnose the specific cause because that this code to be motivated in your situation. Our certified mobile mechanics can pertained to your residence or office to carry out theCheck Engine irradiate diagnosticfor $114.99. When we room able to diagnose the problem, you will certainly be listed with an upfront quote for the recommended fix and receive $20.0 off as a credit towards the repair. Every our repairs room backed by ours 12-month / 12,000-mile warranty.
You are watching: P0449 evaporative emission system vent control circuit intermittent
Tomorrow at 9 AM
Tomorrow in ~ 9 AM
Tomorrow at 9 AM
SCHEDULE P0449 DIAGNOSTICGet a fair and transparent calculation upfront
P0449 code definition
P0449 is a basic OBD2 diagnostic trouble code indicating an worry with the EVAP vent regulate circuit. This code might be watched with various other EVAP device codes
What the P0449 code means
The P0449 DTC means that the evaporative emission manage system vent valve or solenoid has actually a malfunction. The ECU detects this fault and causes the check Engine irradiate to be illuminated ~ above the dashboard.
What causes the P0449 code?Short or open in the wiring harnessElectrical link that is intermittent or of bad qualityFailed charcoal canister vent valveFaulty ECU
What are the symptoms of the P0449 code?Commonly there will be no felt symptom while driving.The inspect Engine Light will certainly be illuminated top top the dash board.The driver may notification a slight fuel odor comes from the vehicle.
How does a mechanic diagnose the P0449 code?
Uses a scan tool to inspect for any kind of codes stored in the ECU including history or pending codes
Take keep in mind of the freeze frame data linked with the codes this is the conditions the vehicle was under when the break down set the inspect Engine Light
Clears all of the codes
Takes the vehicle on a roadway test to confirm any symptoms that are present
Performs a visual inspection of the wiring harness and the vent valve spring for any type of damage
Uses an advanced scan device to operate the EVAP features and enables the vent valve come function, check for suitable operation
Checks for continuity between the vent wiring and ECU
Perform a check on the ECU
Common mistakes as soon as diagnosing the P0449 code
Mistakes have the right to be make with any type of code when procedures are not followed or no completed in ~ all. All contents must be experiment for ideal operation thoroughly before they are changed otherwise perfectly working parts may be replaced unnecessarily.
How serious is the P0449 code?
P0449 is an emissions regulate code and also will reason the car to failure OBD2 based emissions. Various other than failing the emissions the fuel odor might bother part drivers. This code must not stop normal vehicle operation however should still it is in repaired ASAP.
What repairs deserve to fix the P0449 code?Repairing or replacing the wiring harnessReplacing the charcoal canister vent valveRepairing faulty electrical connectionsReplacing faulty ECU
Additional comments for consideration concerning the P0449 code
Advanced level scans are extremely valuable when diagnosing EVAP mechanism codes. This scan tools permit technicians to use the vehicle"s EVAP me test procedures and let the user command on and also off EVAP valves and solenoids. There is no an progressed level scan device these procedures deserve to not it is in performed and diagnosis i do not care much an ext difficult.
need-help-with-a-p0449-code?">Need help with a P0449 code?
positiveeast.org offers certified mobile mechanics that will come to your home or office come diagnose and also repair her vehicle. Gain a quote and book one appointment virtual or speak come a company advisor at 1-800-701-6230.