[T3] Ground for Fuel Pump Plug

[SCS Crewcab]

My prob wasn't the ground at the fuel pump plug after all. It was the 
ground coming from lead 19 from the ECU. At the firewall in the engine 
compartment, just to the left of center, there is a single wire 
connector that joins 2 single white wires. One of the wires has 
continuity with terminal 85 on the fuel pump relay. The other wire is 
broken off. I'm pretty sure it should connect to terminal 19 on the ECU 
but, I do not see any place on the harness around this connector where 
this wire could have broken. It must have broke off just barely inside 
the harness. If anybody has a picture online that can point to where, on 
the harness, to look, it would help a lot.

When I ground the broken white wire at the firewall, the relay does 
energize and I get power to the fuel pump but, the pump doesn't spin. 
This car has sat for 3 years with an empty gas tank and the pump was 
working when I parked it. I priced a new pump online and, it's a real 
bargain at $547.00. I'm hoping the gas that was left it has the pump 
mechanism gummed up. Is there a link somewhere online that gives 
instructions on cleaning or repairing them?



On 7/12/2011 3:05 PM, Jim Adney wrote:
> On 12 Jul 2011 at 14:43, SCS Crewcab wrote:
>
>> I'm trying to diag a prob with my fuel pump on a '71 FI Squareback. I'm
>> not getting a ground on the neg side of the plug that connects to the
>> pump. Where does this terminal connect to ground?
> Both wires come thru a grommet in the firewall, under the left side
> fo the dash. The red one goes to the fuel pump relay and the brown
> one goes to a ground connection. They are easy to follow once you
> find that grommet and the 2 wires.
>