So, you might not have heard the term, fuel pressure regulators. But, as an imperative component of any (EFI) system; your vehicle will not operate without it. Consequently, fuel pressure regulators, see that the fuel rail builds up enough pressure; to support the vehicle’s fuel injector system. Without the fuel pressure regulator; the fuel will go straight through your car’s system and never reach the injectors. Consequently, if the fuel tank pass-through is blocked completely; too much fuel will be forced into the fuel injectors and cause them to fail.
So, to make sure there is a proper air and fuel mixture; an adequate fuel mixture is necessary for all driving situations; ranging from idling to low revs to higher revs. This is where the regulator steps up and does its job; ensuring that the fuel supply meets the demand.
Used to ensure steady fuel supply, a regulator is needed to keep your car going. Even if there are dramatic fuel demand changes; your fuel pressure regulator will make sure, the fuel is flowing properly. There are two sides to the fuel injector. The fuel rail puts one side of the fuel injector under pressure; while the other side of the injector is air boosted by a compressor or a turbo.