The Fuel Pressure Regulator in Dodge Challenger vehicles is used to control the pressure of fuel supplied to the electronic fuel injector. The predominant fuel regulator is installed on the fuel rail and it works on the basis of the spring and diaphragm. The regulator as attaches to the engine vacuum and the fuel return line, changes fuel flow in response to the car engine's needs - it allows excess fuel to flow back to the fuel tank when the engine is idle and reduces flow rate when the engine power is required during acceleration. In the course of time, different models of Fuel Pressure Regulators have been incorporated into the line of the Challenger, including variable models specially designed for adjusted fuel systems. Most OEM regulators are non-adaptive and this can be restrictive in terms of performance whenever upgrades such as bigger injectors or high; volume fuel pumps will have been made. However, products provide superior tuning characteristics in terms of air/fuel ratio discrimination and the facility for all manner of fuel system integration.
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