M103 slightly high idle

[stormyc88]

Hi everyone!

I'm having a slightly high idle issue on my 103. When fully warmed up (80c), it idles at about 1000 rpm in park and about 800 rpm in gear. Also, it no longer does the 1400-ish rpm fast idle when warming up from cold start. It just stays the same.
What I did last weekend was: replaced fuel injectors and seals, intake boot under airflow meter, both idle hoses including the nipple that goes to the intake boot, cleaned IACV out with carb cleaner, replaced ALL underhood vacuum rubber connections and hard lines (in-cabin lines and connectors were done over the summer), replaced throttle micro-switch on linkage (old one was missing part of its little contact wheel), and lubed throttle linkage. All of this was done with genuine mb parts. I did all of this for old age maintenance, since this stuff was all original.
Thing #1: I did not have this issue BEFORE doing all this stuff, so I must have either screwed something up, or I need to make adjustments to compensate for new stuff.
Thing #2 (more important): when I disconnect the electrical plug for the IACV, the idle immediately drops to normal 800 rpm in park, 600 in gear. Plug it back in and goes right back up.

Any ideas? I have not tested anything electrically.
-Chris