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Subject:Re: Fuel tank problem solving (Almost)
From:David Beierl
Date:Tue, 27 Mar 2018 12:26:05 -0400

>
> I put 5 gallons of gas in the tank. Checked for fuel flow at both spigots.
> Yes, fuel from both sides. Tried to start car - I can hear the pump running
> but it doesn’t stop as it should when there’s sufficient fuel pressure. Car
> turns over but won’t start, presumably no fuel at the engine. I assume the
> fuel pump is damaged from running dry for too long?

Pump running or not is commanded by the ECU.  It runs the pump for a couple
seconds when it boots, and any time the ECU is getting timing pulses from
the distributor (air cooled does this differently).

> I detached the pressurized fuel line after the pump. No gush of
> pressurized fuel as I would expect, just a teaspoon or two from the engine
> side of the line.

Teaspoon or so is about what I would expect from opening the test fitting
on the fuel ring at the engine.  It represents the amount that the tubing
and pressure regulator change volume under pressure.

Yrs,
d

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