No maore takers on your question Dave, so what's the answer?

On Fri, Oct 5, 2012 at 3:27 PM, David Beierl <dbeierl@attglobal.net> wrote:

> My '89 White Star has been misbehaving of late.  It started at Buses
> by the Buoy: when idling it would occasionally simply stop; but it
> would start up again with no problem.
>
> Then a week ago in the rain I began getting an occasional dropout of
> a second or two so while drivng.  That night, still raining, I ran
> the engine in the dark and did not observe any corona glow or spark
> discharge.
>
> The following and subsequent days it became clear that rain was not a
> factor.  I was also able to see the tach drop sharply with engine
> speed (automatic) but not plummet like a stone.  And I have wires
> running forward from T-II, AFM, T-I, Throttle switch, O2 sensor, +12
> and ground.  The AFM has the factory pigtail and I monitor on the ECU
> side.  The only thing I'm not monitoring is the fuel injector drive.
> By using a meter with a fast min-max function I was able over time to
> verify that none of these was going open.
>
> At this point I was rather confident that it was the ECU, so I
> swapped in another one (thank you Harry Hoffman).  It was NOT the ECU.
>
> The following day I fixed the problem, which was gradually getting
> worse.  Any diagnosticians out there care to take a stab at what it
> was before I reveal the answer?
>
> Yours,
> David
>