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Re: 99 Mustang Cobra, 4.6L, V8, VIN(V) fuel pressure?
Posted to Technical Discussion Forum on 6/13/2005

Fuel pressures for your car/engine are,

Engine running fuel pressure 35-50 psi (241-345 kPa) Key on, engine off fuel pressure 25-40 psi (172-275 kPa) Login to read more.