Jeep decided to freak out on me this week. It started with a 301 that was fixed due to a small coolant leak on wire 1 (fixed coolant tubing also). Replaced all plugs and wires because why not. Drove, and seemed okay.... until a 505. Assumed it was the IAC, replaced, let run idle for a few minutes, the engine suddenly dies. Hard to start back up without flooring it, and will not hold an idle very long if at all. Brain trust, any suggestions??