1999 Mitsubishi Galant 3.0L

Ok so first was low idle ect so I replaced iac and
distributor plugs and wires all 6 as I don't think the
firewall side had ever been replaced and cat
cleaned maf and throttle body now idles high
2000rpm so it went from the low idle blues to high
idle I can't figure this thing out also while it was
running I sprayed everything with carb cleaner and
when that ran out starter fluid to check for vacuum
leaks nothing no codes either but srs light did trip
after I pulled the upper intake manifold but I don't
think it was that probably just from the battery
being unplugged I checked o2's both looked good
wasn't really even rusty or covered in carbon this
thing is a pain anybody got any ideas ?