80q Fuel pump relay

[Huw Powell]

> I'm having problems with my 1988 80q fuel pump relay.
>  
> I opened it up and jammed the relay closed, so I was able to get my car  back 
> to work, but I now need to diagnose whether my relay went south, or it's  not 
> being energized from the ignition switch.
>  
> Anybody know which slots are my power and ground to energize (close) said  
> relay?

I'll try...

31 = ground
87 = fuel pump power out
30 = battery power
1 = coil signal
15 = ignition switch

I think those are all the terminals that are actually used.

A "normal" SPST relay can be subbed, but you lose the important safety 
feature of the fuel shutting down if there's no spark (coil signal). 
Or, you can jump 30 to 87 to run the pump all the time to get home, or 
15 to 87 to do so, loading the ignition switch with the fuel pump (maybe 
not the greatest idea).

The FPR will close only if it sees ignition power *and* pulses at the 
coil signal terminal.

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/