That sounds more like injector bleeding down. If you can add compressed air to the regulator it will show if the dipaham is working. When you hook the vacuum line up at idle does the pressure drop? Vacuum applied to the regulator makes the spring pressure weaker.
I got tired of changing parts chasing the problem. Fuel lines coil voltage booster , timing, pressures ran new grounds power wire to hot wire all replaced with bigger but my pressure would not drop. Look for leaks between pump and hat. Also replace logger Maf with translator changed out all vacuum lines . not fun to drive when I had to replace head gasket . Be careful... I had two different fuel lines inside the tank that the e85 ate threw and was leaking under boost. My conclusion was change out tank and use a external fuel pump. Good luck i know your pain.
Check the hose from the pump to the hat. Im willing to bet that little 2 inch piece is rotten from the e85. And your pump sock is clogging up that limits fuel threw it. Unless its solid metal its a problem. I have used stainless fuel line and Teflon both couldn't handle the long term e85. I changed mine out the first time changed sock and 6 months later same crap. Runs good for a little while.You're pretty sharp.
But...considering it's a *fuel pressure* issue, I thought I might inquire about the *fuel pressure* regulator first, before dropping the tank.
And because I'm a single dad of a 9 y.o. boy, kind of have to work every now and again, want to be time efficient, need to do it when I actually have the time...*and* want to be wise & not pull the tank unless I've eliminated all other possibilities first.
Anyway...I might open up the FPR to check the diaphragm's integrity. And if that looks good, I'll be commencing a wee bit o' tank drop as soon as I can. Hopefully either tomorrow or Friday.
I said i got tired of the same shit. Did i say its e85? You tried to help me too. What I'm saying is good luck . i couldn't find anyone close to look at mine with e 85.. So i went back to what i knew worked. Internal fuel pump is not the way to go with e 85 unless you use a solid metal pipe to connect pump to hat because the e 85 here in South Carolina eats threw e 85 fuel lines.
If the the reg diaphragm was bad there would be liquid fuel in the vacuum nipple, is there any? If not then it ain't the regulator, 99.9% sure but go ahead and check. You were able to get 88 psi at idle right? Then 99.9 sure it ain't the regulator.You're pretty sharp.
But...considering it's a *fuel pressure* issue, I thought I might inquire about the *fuel pressure* regulator first, before dropping the tank.
And because I'm a single dad of a 9 y.o. boy, kind of have to work every now and again, want to be time efficient, need to do it when I actually have the time...*and* want to be wise & not pull the tank unless I've eliminated all other possibilities first.
Anyway...I might open up the FPR to check the diaphragm's integrity. And if that looks good, I'll be commencing a wee bit o' tank drop as soon as I can. Hopefully either tomorrow or Friday.
Your wasting time drop the tank and stop crying. Pump the gas out of it if your not man enough. Much easier. You can drop it in 5 minutes.
Who's crying? I'm not the OP and it ain't my car.
Just saying for the average Joe it is not that easy to get tour car to run to its e85 potential.
