The metal tip should face the engine—the fuel injector rail connects to the fuel lines and fuel pressure regulator. After locating the fuel injector, test for fuel pressure and flow using a multimeter ...

The metal tip should face the engine—the fuel injector rail connects to the fuel lines and fuel pressure regulator. After locating the fuel injector, test for fuel pressure and flow using a multimeter ...

The injection pressure regulator (controlled by the PCM ... converts to 21,000 psi of fuel injection pressure (entering the combustion chamber) at wide-open throttle. Aftermarket injectors ...

A vacuum-powered fuel pressure regulator at the end of the fuel rail ... The ECU sends a pulsing ground to the injector, which closes the circuit, providing the injector's solenoid with current.

While bumping up fuel pressure will only give temporary horsepower gains on an LT1, an Aeromotive regulator will allow you to run the optimum pressure for a given injector, connect an Auto Meter ...

To supply fuel to the high-pressure direct injection system ... Instead of a basic fuel pump and regulator, the factory supply pump is controlled by the ECM through a fuel pump module to control ...

Served up in four different fuel injector sizes from 29-60 lb/hr ... Edelbrock kit included a pair of fuel filters, fuel regulator, a high-pressure pump and enough fuel line to run from the ...

As a result, most vehicles have OEM fuel pressure regulators to keep the required constant pressure in the fuel rail. But with performance modification in mind, fuel ratio can be tinkered with.