Indeed a stuck relay is another area to check. If you believe
turning the key to the off position instantly cuts all power to
the fuel system, how then would the relay still be powered and
the pump still be running? Since the fuel loop system is powered
through the F/A ratio process controller. If the relay was
burned in the on position then the pump would stop as well when
the key is turned to the off position, if not it would be
constantly running. Because it is a complicated system beyond the
understanding of the overage owner I would have suggest he have
the vehicle connected to a system analyzed and have a technician
determine the reason for the fault. Doing that however brings a
bunch of crap about how we can fix our own
cars why pay a diagnostic fee. That is all will say on the
subject


mike hunt




CaptainKrunch wrote:
>
> If your fuel pump is running then it is a stuck relay as opposed to leaky
> injector as posted previous. The drop in fuel rail pressure caused by a
> leaky fuel injector would not cause a pump to operate at all with the key
> off. If by some paranormal chance that the fuel pump was wired up to
> maintain fuel pressure at all times it would not take more that a couple
> seconds to do so. If an injector was leaking that bad then you wouldn't be
> able to start your engine due to hydraulic lock of the piston in the
> cylinder.
>
> I have seen water injested into an engine which caused hydraulic lockup and
> it through a rod through the side of the block. Little side note
>
> CaptainKrunch
>
> "joe" <joeisen@postmaster.co.uk> wrote in message
> news:407aaaf9.0312291600.57d14423@posting.google.c om...
> > Hello,
> > The fuel pump in my 92 Accord LX (auto trans) runs for a while after
> > driving and key is removed from ignition. It starts off running
> > continuously, then cycles off and on with the on times decreasing and
> > off times increasing until it finally stops after several minutes.
> >
> > What the heck is going on? Relay problem? Sensor problem? Gas cap
> > problem?
> >
> > Thx!