What is a fuel pressure sensor?
Fuel pressure sensors (in fuel-injected and diesel engines) measure fuel system pressure and communicate it to the engine management module. The sensor—also known as a “fuel rail pressure sensor”—is a particularly weak point in the loop that is more susceptible to damage.
What common symptoms indicate you may need to replace the fuel pressure sensor?
Here are the most common signs of a bad fuel pressure sensor:
Your car experiences stalling or idling
Your car runs erratically
The check engine light on the control module turns on (and stays on), a sign that the onboard diagnostic system (OBD) has detected a problem with the system
How long does a fuel pressure sensor last?
The fuel pressure sensor is designed to last throughout your vehicle’s lifetime. Occasionally, however, the sensor will be faulty and need to be replaced.
The fuel pressure sensor is not included in routine maintenance and is only handled when it malfunctions. Get your fuel pressure sensor checked as soon as possible if you feel like it may be failing.
Can I replace my fuel pressure sensor myself?
Unless you consider yourself an expert in do-it-yourself car repairs, you’re probably best off seeking the help of a certified mechanic.