94 bravada no spark

I have replaced the coil, cap, rotor, dist. module, and checked the pick up coil and still nothing. What am I missing? fuses look good might need a fuel pump but want spark first any sugestions?

The coil connector has 4 wires connected to it. The pink wires should have battery voltage when the ignition is in the RUN and CRANK positions. The white wires should pulse when the engine is cranking. Post your results.