Possible ignition module problem

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Okay i put in another ignition module, i have also checked the Map sensor and just tested the truck with the map and EGR disconnected. I still have the same problem. I did not test the pickup wires since i can only check continuity. The problem seems like fuel starvation. i am thinking about changing the fuel regulator but i cannot think of a logical reason to do so and in why it would be causing the problem since i did not have the problem until i changed out the bad ignition module.