[Shotimes] Help with Fuel system problem.

[Kevin & Cheryl Airth]

I got the 190 LPH model. It's cheaper and I think just about the correct
stock replacement. The ATX cars came with only a 63 LPH pump from the
factory! Biggest difference I noticed was how quite the new pump is. Not
working as hard?
.
.



> Wow!  I've had that same exact problem (different car) and actually
> also arrived at the incorrect conclusion that the fuel pressure
> regulator was at fault.
>
> About fuel pumps, what mods drive you to need a 255 lph pump?  I am
> starting to face the reality that sooner more likely than later my
> 12 yr old fuel pump will need to be replaced.
> -- 
> Cheers,
> Carl Prochilo
> 1992 Ultra Red Crimson
>
> Kevin & Cheryl Airth said:
> > Don:
> >  The problem is in the fuel check valve in the fuel pump. You get a
> > new one
> > when you change the pump. I don't know where to get just the check
> > valve. I
> > am sure the car has enough miles to justify a new pump. I like this
> > guy for
> > cheap hi-output pumps:
> > http://www.autoperformanceengineering.com/
> > .
> > .
> >
> >
> >
> >> My son Ken's 95 ATX started displaying symptoms of fuel
> >> pressure problems.  hard start when hot, bad idle for a while.
> >>
> >> Got out the fuel pressure tester, and the system won't hold
> >> any pressure.  Key on, engine off test shows pressure went
> >> to about 20 and then dropped like a rock.
> >>
> >> Engine on at idle, about 30 psi.
> >>
> >> I took a regulator off of my spare 3.0L engine (any
> >> difference between the 89 regulator and 95 ATX?) and at
> >> first it built about 30 psi and held it (key on, engine
> >> off), then we started the car, started fine, pressure held
> >> at the same 30.  Then shut off and pressure went to zero
> >> immediately.
> >>
> >> Then tried keyon, engine off and it went to 40 and
> >> immediately to zero.
> >>
> >> What do we do next, and do we still need a new pressure
> >> regulator?  AutoZone quoted 85 bucks!
> >>
> >> All help appreciated.
> >>
> >> OH, car runs OK, just hard starting when hot, and bad idle
> >> after hot start for a little while (maybe a couple minutes).
> >>
> >> Don Mallinson
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