Fuel pressure Regulator

[havin-fun]

I just installed a FPR (rpm) and the fuel press gauge bounces over about a 10 lb range the stock one was steady is this normal.

 

[matwell]

fuel pressure reg

fuel pressure reg

so does mine fitted to 92 typhoon { U.K.}

 

[ItsMyTy]

no, not normal

what kind of fuel pump do you have?

 

[ed hess]

might be the gauge is starting to go south. only use oil filled for fp they soften the pump pulsations and will last longer.

ed

 

[havin-fun]

stock pump and I took a FP reading just before I put on the FPR on and the gauge was ok then
Thanks

 

[AlaskaTy]

so with the stock pressure regulator your fp was fine, but when you went with an afpr the pressure jumps all over the place?? Ever consider you got a bunk afpr? I don't know how often that happens, but I'm sure it could. Good luck.

 

[havin-fun]

Thats what I was thinking, truck runs ok but I thought the fuel pressure should be stable. Guess I check it one more time before I call Mike

 

[Lynn D. Brown]

Wally,

What kind of a FP gauge do U have ? I wouldn't think electronic ones would pulsate. Most people go electronic because U can't bring gasoline into the car w/o an isolator. I installed 2 of those and will never do one again. I've gone electronic on my Ty.

 

[ed hess]

my electronic inside and mechanical oil filled under hood dont pulsate. however i have seen the mechanical non oil filled pulsate so much the needle finally fell off. lol, oh, and it was on a sy.

ed

 

[havin-fun]

Think I figured it out, when I started It up and first adj. the afpr. I think there was still air in the fuel rails It's fine now so that was probally it.