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This is a tough diagram to track down. I assume the old pump has a different connector and the new pump come with a connector that you have to wire in. We might be able to sort it out using the electrical schematic. Can you give me the wire colors on the old and new connectors?
Just to get us started, gray from the old connector is power and black is ground. On the new connector that should be the same.
Let me know if the connector looks like this: