Why is a fuel tank pressure sensor needed?

A fuel tank pressure sensor is essential for monitoring the pressure within the fuel tank to ensure optimal engine performance and emissions control. It helps detect potential issues such as fuel leaks or evaporative emissions, which can lead to environmental pollution. Additionally, accurate pressure readings contribute to proper fuel delivery and engine efficiency by allowing the vehicle's onboard computer to adjust fuel mixture and combustion processes accordingly. Overall, it plays a crucial role in maintaining vehicle safety and compliance with emissions regulations.