There are a few signs that your pressure sensor in the automotive fuel system may be malfunctioning:
Check Engine Light: If there is an issue with the pressure sensor, the engine control module will often detect it and trigger the check engine light. This can be an indication that there is a problem with the fuel system or pressure sensor.
Poor Fuel Economy: If the pressure sensor is providing inaccurate readings, it may cause the engine control module to adjust the fuel injection system incorrectly. This can lead to poor fuel economy, as the engine may be receiving too much or too little fuel.
Rough Idling: If the pressure sensor is not providing accurate readings, it can cause the engine to idle roughly or stall. This is because the engine control module may be adjusting the fuel injection system incorrectly, causing the engine to run poorly.
Reduced Power: If the pressure sensor is malfunctioning, it can cause the engine to have reduced power and acceleration. This is because the engine control module may not be providing the correct amount of fuel to the engine.
Fuel Leaks: If the pressure sensor is damaged or malfunctioning, it can cause fuel leaks in the fuel system. This can be a serious safety hazard and should be addressed immediately.
If you notice any of these signs, it is important to have your vehicle inspected by a qualified mechanic as soon as possible. They can diagnose the issue and make any necessary repairs or replacements to ensure that your vehicle's fuel system is functioning properly.