First, why are you using a realy on your fuel pump? Second, why a 30
amp? Bear in mind the KISS theory. The more connections/devices in a
circuit, the more potential problems you will have. If you want to be
cool, run a piece of 14 or 16 gauge wire from a fuse that gets voltage
when you turn on the key to a switch (spst) concealed under the dash
somewhere. Run a wire from the switch to the fuel pump positive
terminal. Turn the switch off for anti-theft mode, on for operation.
Otherwise, run the wire without the switch to the pump. Better yet, use
the wires that powered the old pump if there was one.
To answer your question about the relay terminals: it depends on the
maker as to which terminal is marked what. But, a DC realy coil should
be wired only one way + to +, - to ground(chassis).
Also, the only stupid question is the one that would have saved grief if
it had been asked, but wasn't.
Cheers,
Derf
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