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Posts Tagged: Evaporative Emission Control System

P1443 Evaporative Emission Control System Vacuum System

Fix code P1443 Evaporative Emission Control System Vacuum System – Purge Control Valve Solenoid If you have a P1443 Evaporative Emission Control System Vacuum System – Purge Control Valve Solenoid trouble code, this post will help you understand what it is and how to fix it. The evaporative emission control system checks to make sure there are no leaks in the lines that run from the gas tank to the charcoal canister and up to the engine. It also checks to make sure the gas cap is sealing correctly. When you … Read More

P0455 definition

P0455 Evaporative Emission Control System Leak Detected (Gross Leak) If you have a P0455 Evaporative Emission Control System Leak Detected (Gross Leak), first check to make sure the gas cap is installed and torqued properly. The Evaporative Emissions system has applied a vacuum to the fuel system and detected a major leak. This is usually a sign that you’ve left the gas cap off, or that the gas cap is not sealing properly against the neck of the filler tube. First, check the gas cap to make sure it’s tight. … Read More

P0446 Fix

Fix for P0446 Evaporative Emission Control System Vent Control Circuit Malfunction The evaporative emission control system checks to make sure there are no leaks in the lines that run from the gas tank to the charcoal canister and up to the engine. It also checks to make sure the gas cap is sealing correctly. One common trouble code is a P0446 Evaporative Emission Control System Vent Control Circuit Malfunction What the vent solenoid does When you fill your car with gas, the fuel vapors are absorbed by the charcoal canister. … Read More

P0443

P0443 Evaporative Emission Control System Purge Control Valve Circuit Malfunction Most common cause of a P0443 The key to diagnosing a P0443 is in its definition: Evaporative Emission Control System Purge Control Valve Circuit Malfunction. That means the computer has detected a circuit issue. That can be an open in the purge valve solenoid windings, a short to ground in the valve’s windings, a bad or corroded electrical connector to the valve or a wiring harness issue. In many cases, it’s a bad purge valve. But there are also many … Read More


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