What is the fuel pressure in the tank?
What is the fuel pressure in the tank? With the fuel pump removed from the tank in a bucket of fuel it reads 80 psi. The engine check light is on and it says all three O2 sensors have low/slow response. What should fuel pressure be at fuel rail? Pressure when checked at fuel rail was around 30-32 psi with vacuum, up to 45 psi with vacuum unhooked. Vehicle seems to surge a little bit. helpful? Fuel should be 30-45 psi with key on engine off. Try a new fuel filter if pressure okay tested like I said. Then clean...