![]() The engine check light doesn’t necessarily mean any issue with the fuel tank pressure sensor. The illumination of the engine warning light is to notify the driver of any imminent issues in the system. For this reason, if the fuel tank pressure sensor determines a problem or leaks in the fuel system, the engine control module will trigger the engine warning light. The FTP sensor relates all the collected data to the car computer. The FTP sensor works in harmony with the powertrain control module. If a leak exists on the gas cap or vapor is escaping anywhere in the system, the FTP sensor will notify you. Remember, the FTP sensor is an evaporative emission control system (EVAP) component. This helps you to determine if there is a leak in the fuel system, especially the one related to evaporation. What Does The Fuel Tank Pressure Sensor Do?Īs the name suggests, the FTP sensor reads the gas pressure in the fuel system. We’ll also outline the symptoms of a bad fuel tank pressure sensor and answer related questions. And how to test a fuel tank pressure sensor. In this article, we’ll discuss what causes a fuel tank pressure sensor to go bad. This can cause engine stalling, weak acceleration, bad gas mileage, and hard starting. If it fails, it’ll decrease the amount of gas in the combustion chamber. Its primary function is to detect the pressure in the fuel system and enhance fuel economy. The FTP sensor is normally placed on top or inside the gas tank. What is a fuel tank pressure sensor, anyway? This offers a high fuel economy, minimizes environmental pollution, and prevents premature engine damage. The EVAP system traps unburnt fuel vapor from the gas tank and transports it back to the fuel system. The fuel tank pressure (FTP) sensor is a vital evaporative emission control system (EVAP).
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