What is code P0446 Chevy?

What is code P0446 Chevy?

Code P0446 means the car’s computer has detected a problem with the EVAP system vent valve. The EVAP system is primarily composed of the gas tank, gas cap, vent valve, purge valve, and charcoal canister.

Where is the EVAP canister located on a 2004 Chevy Silverado?

The 2004 Chevy Silverado EVAP canister is located on the front side of the fuel tank. Inside the canister is activated charcoal which absorbs fuel vapors. Those vapors are then siphoned out once the purge valve opens and flows into the intake manifold.

Can I drive with P0446?

The P0446 code won’t put you in any immediate danger. You can still drive your vehicle if you see this code. Other than the check engine light, you may experience reduced fuel economy. While this code may not create life-threatening problems, anything that triggers a check engine light deserves attention.

What is code po446 and po441?

The P0441 code is Evaporative Emission Control System Incorrect Purge Flow. It’s a diagnostic trouble code (DTC) which is a generic OBD2 powertrain code. This means the code P0441 applies to all vehicles manufactured since 1996.

How to fix Chevy code p0446?

Scan your Jeep to verify P0456 is the only code present. If other codes are present regarding fuel pressure or the fuel system, repair and diagnose those first. If it is paired with P0441, P0440, and/or P0446, then there is most likely a solenoid failure, leaking charcoal canister, or a more complex EVAP leak. BMW P0442 EVAP Control System Leak

What does code po446 mean on Toyota Corolla?

Toyota Corolla P0446 Meaning. P0446 is a universal OBDII trouble code. This means that regardless of which make or model of vehicle, the code will mean the same thing (Corolla or not). The code technically stands for: Evaporative Emission Control System Vent Control Circuit Malfunction

What does check engine code on p0446 Chevy Prizm?

The Powertrain Control Module (PCM) sets the P0446 code if the vacuum decay rate is greater than a predetermined value. The Powertrain Control Module ( PCM) monitors the performance of the Evaporative Emission ( EVAP) system by applying a predetermined level of vacuum to the EVAP system then monitors the vacuum decay rate.