Ok, so I replaced the tps and ecu coolant temp sensor. Check engine light off now yay!
Now I haven't checked for hidden codes. I have not checked/reset timing. I have monkeyed with idle screw ( what's the factory position anyways).

Van starts but I have to give it gas for a Minit or five until it will idle on its own. Idle in park is about 750. Set with adjusting screw so van doesn't stall out in gear. Acts like vacuum leak but no leak! "fixed" intake hose with Honda fipg and silicone.

Is there something that controls idle until engine warms up? Does polarity matter to cold start injector?