Engine started fine drove for a block and then quit. Engine turns over properly but have established there is no spark and the fuel pump does not operate when key is turned to start. Pump was replaced a year ago. Have replaced distributor cap and rotor as well as the ignition pick up module. Replaced SBEC with known good unit. Still no improvement. Have gone through some of the electrical but not sure that I have eliminated all possible connections. Can you provide more suggestions???

Thank you.