Code P0446?

BUSINESSFRED

MEMBER
2010 FORD MUSTANG
4.0L
V6
2WD
AUTOMATIC
112,000 MILES

The MIL pops up immediately after resetting battery, my scanner describes it as "Evaporative Emission System Vent Control Circuit" I can only assume it's a not working sensor or bad wiring, but I'm trying to narrow down which part it may potentially be before ordering it.

I'm requesting a diagram of the Evap System related sensors / solenoids to help in identifying the parts.

And if possible, troubleshooting steps for this Check Engine Light, OBD2 Code : P0446

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1 Reply

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

The diagnostic trouble code (DTC) P0446 for your 2010 Ford Mustang is related to the Evaporative Emission Control (EVAP) system, specifically indicating a fault in the vent control circuit which is usually the vent control valve which is mounted and serviced on the EVAP canister. Here are the instructions on how to change it out and the location of the valve as well. Check out the images (below). Let us know if you need anything else.

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