When your Infiniti has the P1446 code, it means that the EVAP canister vent control valve remains closed under certain driving conditions. This code can be difficult to diagnose because it can be caused by a variety of issues. The most common causes of the P1446 code are a saturated charcoal canister, a damaged or failed control system pressure sensor, a damaged or failed canister vent control valve, a blocked or bent canister vent control valve rubber tube, a damaged or failed water separator, and a failed PCM. To ensure that your Infiniti runs smoothly and without any problems, it is important to understand the causes and solutions of the P1446 code.
Causes and Solutions of the Infiniti P1446 Code
| Cause | Solution |
|---|---|
| Charcoal canister is saturated with fuel or moisture | Replace the charcoal canister |
| Control system pressure sensor is damaged or has failed | Replace the control system pressure sensor |
| Canister vent control valve is damaged or has failed | Replace the canister vent control valve |
| Canister vent control valve rubber tube is blocked/bent | Clean or replace the canister vent control valve rubber tube |
| Water separator is damaged or has failed | Replace the water separator |
| PCM has failed | Replace the PCM |
When your Infiniti is driving, the presence of the P1446 code can cause the engine to run rough and may lead to other issues. It is important to understand the causes and solutions of the Infiniti P1446 code in order to ensure that your vehicle is running smoothly. The P1446 code is caused by a variety of issues, the most common being a saturated charcoal canister, a damaged or failed control system pressure sensor, a damaged or failed canister vent control valve, a blocked or bent canister vent control valve rubber tube, a damaged or failed water separator, and a failed PCM. Knowing the causes and solutions of the P1446 code can help you identify the issue and take the necessary steps to resolve it.
Saturated Charcoal Canister
When the charcoal canister becomes saturated with fuel or moisture, it can cause the P1446 code to be triggered. To resolve this issue, the charcoal canister must be replaced.
Control System Pressure Sensor
The control system pressure sensor is responsible for monitoring the pressure in the EVAP system. When the pressure sensor becomes damaged or fails, the P1446 code will be triggered. To resolve this issue, the pressure sensor must be replaced.
Canister Vent Control Valve
The canister vent control valve is responsible for controlling the flow of air into and out of the EVAP system. When the valve becomes damaged or fails, the P1446 code will be triggered. To resolve this issue, the canister vent control valve must be replaced.
Canister Vent Control Valve Rubber Tube
The canister vent control valve rubber tube is responsible for connecting the canister vent control valve to the EVAP system. When the tube becomes blocked or bent, the P1446 code will be triggered. To resolve this issue, the tube must be cleaned or replaced.
Water Separator
The water separator is responsible for separating moisture from the fuel. When the water separator becomes damaged or fails, the P1446 code will be triggered. To resolve this issue, the water separator must be replaced.
Powertrain Control Module
The powertrain control module (PCM) is responsible for controlling the fuel and air mixture in the engine. When the PCM fails, the P1446 code will be triggered. To resolve this issue, the PCM must be replaced.
Conclusion
The Infiniti P1446 code can be caused by a variety of issues, the most common being a saturated charcoal canister, a damaged or failed control system pressure sensor, a damaged or failed canister vent control valve, a blocked or bent canister vent control valve rubber tube, a damaged or failed water separator, and a failed PCM. Knowing the causes and solutions of the P1446 code can help you identify the issue and take the necessary steps to ensure that your Infiniti is running smoothly and without any problems.
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