Will the pick up coil in a distributor keep you from hearing fuel pump run couple of seconds when turn ignition on 1993 Taurus 3.0 replaced ECM and coil?

No, the pickup coil in the distributor of a 1993 Ford Taurus 3.0L will not prevent you from hearing the fuel pump run for a couple of seconds when the ignition is turned on. The fuel pump's initial run is controlled by a separate circuit, typically involving the inertia switch, the fuel pump relay, and the PCM (Powertrain Control Module, which you replaced as the ECM).

If you're not hearing the fuel pump prime, the problem lies elsewhere in that fuel pump circuit, not the distributor pickup coil. Possible causes include:

* Fuel pump relay: This is a common failure point.

* Inertia switch: This safety device cuts power to the fuel pump in a collision. Check for it and make sure it's not tripped.

* Wiring: Check for broken or corroded wires in the fuel pump circuit.

* Fuel pump itself: The pump might be faulty.

* PCM (ECM) programming issue (unlikely after replacement): Even though you replaced the ECM, a rare possibility is a problem with its programming or a compatibility issue with the replacement unit.

Since you've already replaced the ECM (which is unlikely to be the cause of this specific issue), focus your troubleshooting on the fuel pump relay, inertia switch, and wiring. A multimeter can be very helpful in checking for power and continuity in the circuit.