Here's a picture of where the turbo temp-sensor is located:
And with the intake-manifold removed:
And a lower-profile aftermarket unit you can get at
NAPA
that doesn't run into the bottom of the intake-manifold when using larger aftermarket turbos:
You can test the pump-relay by sticking a nail into the female plug and grounding it on the intake-manifold. The pump should run for 30-seconds and shut off.