Can someone help? I need to drive my dart tomorrow

Seeing the pictures and what you ahve posted, I'm guess you have not cleaned the terminals inside the bulkhead connectors. That's should be done. They are susceptible to oxidation. At least some of the resistance is probably in these connections. Carefully pull the connectors off (there's a tab on each side) and clean. Some quick dry electrical cleaner is helpful.

There's more wires I don't recognize. The bright blue one goes where? And maybe more important the wire attached to the starter ? Its always Hot. Does it go inside?

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