1999 Chevy S-10 fuel pump test wire?

I keep reading about a fuel fump test wire located under hood on drivers side, unable to find it yet. Have checked fuel pressure. There is none, no whine of fuel pump when ignition turned on, swapped relay in fuse box with working relay from horn (same part number). Have good spark at plugs, will start with squirt of starting fluid. Really need to check fuel pump, where is this elusive wire, or how else can I jump the fuel pump?