Welcome back,
Leo;
I am glad you are well, stay that
way!
I didn?t respond the first time
you posted this, because I don?t really have anything better than a guess, and
it isn?t even an educated guess, since I?ve never had this particular symptom
to deal with, but as a shot in the dark, I would try running some fuel
injector cleaner additive through with your next few tanks of gas ? auto
supply places carry it, and some fuel brands add it to their fuel. The reason
I suggest this is that if there is some blockage in the fuel nozzles, or if
the fuel pressure regulator valves are a bit sticky, or if the dye used in
some brands of fuel has coated the optical parts in the fuel flow meter,
making it a bit slow to respond, this stuff will slowly improve the situation,
without having to take anything apart. It is sort of a magic bullet, but
it takes a while to have effect.
If that has no effect, the next
thing I would try is to take the control fuel pump apart to clean out any
accumulated gunk in it, to make sure it is performing up to it?s best.
The only other thing I can think
of that would make the fuel injection slow to respond, assuming the pressures
are all within spec, is if someone has modified the power module amplifier
that drives the control fuel pump in a way that lowers its frequency
response. I can?t see why anyone would do that, and it would take a
somewhat technical person to even know how to do that.
I?ve cc?d Bob Baker to see if he
has anything to add to this ? he has much more experience with these cars than
I do, now.
Dick
Benjamin
From:
mailing-list-owner@xxxxxxxxxxxxxxxx
[mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of Leo Heligas
Sent: Sunday, July 16, 2006 5:24
PM
To: Imperial
Club
Subject: IML: '83 EFI
Stumbles
Now that i am able to post to the
list, I have a problem for the EFI gurus. Mine starts fine and
runs pretty good. However, If I push the throttle down too fast it will
stumble and probably would quit if I kept the throttle down. If I push it
down slowly it will take off just fine and rune fine until the next stop light
and then all over again. Any ideas??