80q Fuel pump relay

[TooManyAudis at aol.com]

Thanks Huw.
 
I think my numbers don't quite match up to yours, but I get the general  idea.
 
So, I take it there is no way to check the integrity of a FPR by connecting  
straight to battery power?
 
And, excuse my ignorance, but what is an SPST relay?
 
Thanks, 
 
 
Tom

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/