1989 Ford Mustang no fuel, no spark

When the key is on I have power at both sides of the coil. The fuel pump will not run when the key is on. My wiring diagram shows the EEC relay sending a continuous hot wire to the fuel pump relay plug, this wire is hot at the relay. If I take a jumper wire from this hot wire and touch it to the fuel pump prong in the plug, the pump comes on and pressurizes the fuel rail to 42psi. So I'm guessing the wire from the computer isnt telling the relay to power the pump. I've been told it can be a sensor telling the computer to leave that wire "off". I just wonder if its the same sensor telling the ignition not to fire? Or maybe the computer just went bad.I'll be more than glad to make additional donations if we can figure this ole' heap out. My book shows this car does not have a cam or crank positioning sensor, but it does have these 5, engine coolant. Air charge temp. Throttle positioning. Egr valve or manifold absolute pressure (sensors). I do not know their exact roles in the computer though. Thanks for the help

I don't understand. The coil has power to it, the distributer has power to it. As I have said the ignition control module was tested and replaced, the pick up coil checks out ok. There are 4 wires that terminate in the plug for the fuel pump relay. One wire is orange, its always hot and comes from the ECC relay, One is red/black and comes from the inertia safety switch, this switch has tested ok. The pink one terminates at the fuel pump, and the tan/green heads to the computer. I can take only 2 of these wires, the orange, and run it to the pink, and the fuel pump runs. The computer isnt activating the fuel pump relay.I need to know what sensor/switch can prevent this signal from activating the fuel pump relay. I don't believe you finished your second sentence "either the tan and lite green wire is open or the computer" is bad? For the record I have bought 3 fuel pump relays always the same result.

I unplugged the computer to check pin 1 black/orange with the key off and it has no power. I tried with the key on. Still no power. I checked every pin in the plug with the key off and none of them are hot. I tried every one of them with the key on and had power to three pins, blue. Red. And green/yellow. I believe the red runs to the egr/fuel injection, I have no idea where the other two go.

Do you know where I can find the location of the ecc relay? I see it in the wiring diagram but don't even know what it looks like. I'm actually having trouble locating a new one, or even a pic of one. Thx

The wires that comes from the starter selonoid to the ecc relay were burnt in two. It runs. I ended up chasing each wire anyway but thanks for trying.