A Fuel Pump sensor mainly works on monitoring the performance and functionality of a fuel delivery system in a vehicle. Usually, it will monitor fuel pressure to give ongoing data to the engine control unit about the quantity of fuel being delivered to the engine. Most fuel pressure sensors work within a range of 0 to 5 volts, which linearly changes the fuel pressure to an electrical signal that the ECU can understand. The sensor then sends a stable voltage signal to the ECU when the fuel pressure is within its optimal range .
Upon receipt of this signal, the sensor provides proper feedback at the time the Fuel Pump is working so that the correct quantity of fuel reaches the engine. In this case, if that sensor detects a drop in fuel pressure-which could be due to the failure of the Fuel Pump or blockage-it transmits the voltage signal at lower levels to the ECU. The drop may translate into a pressure reduction of 10 psi or more which may illuminate the check engine light with the consequent possible repercussions of such conditions on the performance of the engine, for example, stalling and misfire.
One of the largest recalls Ford had in 2019 included more than 400,000 vehicles due to defective sensors fors that inaccurately reported fuel pressure, causing stalling and performance problems. This underlined the need for dependable sensor readings in maintaining vehicle performance and safety.
Also, there is a Fuel Pump sensor that has an influence on fuel efficiency. If this sensor fails and shows high pressure, the ECU might change the fuel mixture. This can make the engine run rich. The increase in fuel consumption under such a condition may go up to 10% to 15%, depending on the driving habit and condition.
The pioneer in the car industry, Henry Ford, once said, "Quality means doing it right when no one is looking." Just like any other car part, it needs to perform as expected to help keep vehicles performing better, efficiently, and more economically.
How does the Fuel Pump sensor work, and how will it affect your vehicle's performance? Log on to Fuel Pump for further information.