Fuel pump not running

[Huw Powell]

If there is no coil pulse FPR kills the pump.

Probably not your problem, but a data point.

Does the car start and run with the FP hot wired?

On 3/23/2014 7:32 PM, Radek wrote:
> Greetings to all;
>
> This is a suite to the JB Weld thread, probably better addressed under a new heading.  Here's what happened:
> Car is 88 90Q.  Since I couldn't get a new fuel line connecting the fuel pump to the pressure accumulator and a replacement was hard to find, I decided to temporarily bypass the accumulator so the car could be started and moved out of the garage. I went to the local boneyard and got some fuel line banjo fittings (17mm and 19mm) and connected the fuel pump directly to the fuel filter.  Car started without a problem and I drove it out of the garage.
>
> The next day, though, it would not start anymore.  Fuel pump was dead.  Fuse is OK, fuel pump relay replaced with a known good one - no result.  With the ignition key "on" there seems to be no power to the pump's red terminal.  However, when hot wired, the pump works.
>
> So, there must be something cutting the power supply to the fuel pump.  My question is:  is there any device in the car (fuel pressure sensor, for example) that would prevent power supply to the pump?
> Or should I look instead at the wiring and grounds?  BTW, would anyone know where to buy the fuel pump connectors (look like Marette twist electrical connectors)?  TIA.
>
> Radek
> 88 90Q
> V8Q 5-sp
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