A fuel pump pressure regulator is a small device that serves to keep fuel pressure in the car's engine consistent, so it gets just enough gasoline for good performance. It is not recommended to let fuel pressure fall below 40 PSI in your vehicle -Typical combustion requires fuel pressure between 40 to 60 PSI in most cars. The pressure regulator, meanwhile, sends the overflow fuel back to the fuel tank or just bypasses it if too much is being sent through from the pump as to not send excessive pressure into the engine.
We were told that one of the best things about a pressure regulator is its ability to increase and decrease fuel pressure to meet engine requirement. In fact, at idle or light load the engine requires less fuel and a regulator will reduce pressure. On the other hand, when engine requires more fuel like under heavy acceleration and at high speed then regulator should increase pressure to cope with this situation. This real-time calibration results in up to 10% improved miles per gallon over systems without regulators—especially on high-performance or turbocharged engines where peak operation pressure can exceed 60 PSI.
A clogged or stuck closed fuel pressure regulator will result in big engine performance problems. A incorrect pressure on the regulator allows fuel pressure to drop and as a result, your engine will run lean. This can lead to misfires, sluggish acceleration and decreased fuel efficiency. As an instance, a 20% reduction in fuel pressure can reduce the power of the engine up to 15%, hence major drop-off in performance. On the other hand, excessive fuel pressure will flood the engine – symptoms include rich running conditions, black smoke from the exhaust and poor fuel mileage.
A fuel pressure regulator for a new replacement fuel pressure regulator is actually pretty cheap at between $100 and $200 depending on the vehicle and some labor. By keeping the fuel system in good shape, which includes inspecting for leaks or restrictions in the pressure regulator, you can help to make sure that your fuel pump lives out its full life expectancy. If you drive something more high-performance, it might be closer to 100,000-miles while economy cars can often make 150,000 miles or even beyond. The problem is not vice-versaable; a bad pressure regulator may soon kill the fuel pump which should otherwise meet its expected lifespan.
In a 2018 case, an automaker issued a recall of more than 50,000 cars with fuel pressure regulators that could fail and lead to stalling and low engine power. The incident served as a stark reminder of what is at stake for regulators tasked with maintaining the overall safety and dependability of vehicles.
Regarding Fuel Pump Pressure Regulators or its significance in additional details click on this link Fuel Pump.