What should the fuel pressure be at 60 mph?

What should the fuel pressure be at 60 mph?

Vehicle cut out at about 50-60 mph. The cut out is abrupt and intermittent. There are no code from the PCM. 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.

What is the PSI of a gas tank?

I got 30 psi at 20 inches vacuum and 38 psi at 0 inches. 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. It has 102,649 miles and the fuel trim is 100%.

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 throttle plate on both sides and IAC hole. helpful?

What should fuel pressure be on fitech fuel tank?

The fitech internal fuel pressure regulator should be allowing fuel to return back to the tank over the prescribed regulated pressure of 58 psi or similar. If the return line isn’t plugged, then the internal regulator isn’t working, preventing excess fuel from escaping back to the tank.

What happens to fuel pressure when you turn the key off?

SOLVED: Fuel pressure bleeds off when i turn the key off . – Fixya Hooked a fuel pressure test up . the pressure pops up to 55 to 58 psi. i turn key off pressure drops down to 15 20 psi Clicking this will make more experts see the question and we will remind you when it gets answered.

What should the normal fuel rail pressure be?

Should be 35-70, idle-wot. 39psi rail pressure means you have 0 or close to 0 vacuum. i have 31 psi. ford wants 35+ psi. I was told this by a ford tech last time my car was there.

What is the correct fuel pressure, 5.3 engine?

My 99 5.7L was always a little below the low end of the fuel pressure specs – even with a new GM pump (still ran fine). Thanks for your reply. Key on, engine off for my truck is 55 psi. Driving is 45 psi. I just can’t believe 45 is enough for this engine.

What’s the fuel pressure on a 99 5.7L?

Not sure what this means in real life. My 99 5.7L was always a little below the low end of the fuel pressure specs – even with a new GM pump (still ran fine). Thanks for your reply. Key on, engine off for my truck is 55 psi. Driving is 45 psi. I just can’t believe 45 is enough for this engine.