I am fighting the same problem,(1996 Saab 900) no fuel pump voltage.
I have located the pump relay under the knee bolster driver side, and easter egged relays around, looking for a change.
I tumbled the rear seat, and under the carpet flap on the rear passenger side there is a big rubber cork, remove that, and the 2 connectors are brown fuel gauge, the blue connector is pump.
I have no voltage to the pump during crank.
I metered the harness from there to the front of the car, and have a good ground. (5 or 6 ohms)
The car died a few days ago, then "cured" after sitting for a couple hours. It ran kinda lame for a couple of days, not sporty, but like a Saab. And it started right up.
I figgered with the pump side plug disconnected, that with a regulated 12 volt bench supply that I could verify pump operation, hummm, like a GM, nothing!
I know that I have crank sensor and good ignition because the car will run with a spray bottle prime into the throttle body.
I can't imagine the ECM and pump, calving at the same time....
I hope that the gurus have seen this before.
Monday, July 28th, 2008 AT 11:41 AM