If you jump the fuel pump and the car starts, check to see if the ABS light is on. If it is, it's more than likely the OVP relay.

According to alldata, the FP relay will shut off if it doesn't recieve an RPM signal for more than a second, so that could be the problem as well.

The easiest way to rule out the FP relay would be to test it off the car with a 12V power source and a meter; or take the casing off and watch it while it's installed while taking voltage readings...

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A.S.E Tech A1,A6,A7,A8 & MVAC 609 + EPA 608

Unless stated otherwise, any question I ask is about my greymarket 1985 380SEL.