What's the 2007 Nissan Frontier fuel pressure regulator location?

The 2007 Nissan Frontier's fuel pressure regulator hose is connected to the intake manifold and the regulator assembly is mounted to the Frontier's fuELRail. Signs the regulator may be compromised include black smoke from the exhaust, gas spillage from a vacuum hose, blackened spark plugs, mIS Fires, a reduction in engine and acceleration power and excessive pump noise. The FPR is responsible for deterMINIng the amount of gas pumped into the engine's injectors. It uses data collected from speed and pedal sensors to direct the air/fuel mixture in the Frontier's combustion chamber. If a vehicle is running too "rich" or "lean", performance and economy will be interrupted. The average cost to replace the FPR in the Frontier ranges between $550-$830 in parts and labor at a dealership.