5SFE High Idle Options

[cyberblader1130]

I've been scouring the net using google, toyotanation and 6gc.net. My 5sfe is currently idling at 1200-1400 rpms and i can't seem to lower it by any means.
So far i have.......
- Cleaned the Throttle body and intake manifold the best i could
- Cleaned the IACV + tried adjusting the plate at the bottom both ways - Idle soars to 2000 then pulsates then adjusted back.
- Replaced the majority of vacuum lines
- Checked the MAP, IACV, FPR
- Checked and adjusted the TPS

The lowest rpm i have managed to obtain has been 1100 and know the stock is around 800.
Anyone have any ideas?

Off topic but might be revelant, i also changed Cap + Rotor, Spark Plugs (NGK double platinums) and Harmonic Balancer (The crank pulley i removed looks nothing like the new one??? Much larger and heavier in comparision.) 2 New belts as well.

[cyberblader1130]

I replaced my thermostat, did an entire coolant system flush with fresh coolant, replaced TPS and adjusted, replaced sensor for IACV and adjusted the bottom plate. Everything works much better and it idles around 800 rpm now.
Still need to check and adjust ignition timing cause the car is really sluggish compared to what it used to be. I think the timing might be retarded due to some issues with my timing light.