94 celica ST idle flucation, cant get the idle to be steady. Options

[rapid36]

Hi everyone my 94 celica ST has a idle fluctuation when im in gear and have the fans on. when the fans go off i idle at about 1k. normal idle in park with no fans or accessories on is about 1.5k which I know is a issue, I replaced the fuel filter, spark plugs and spark plug wires, o2 sensor, throttle body and TPS from another celica but I dont think I aligned the TPS correctly? Do you think this may the cause? If so does anyone know how to properly re adjust the TPS sensor onto the throttle body?

https://youtu.be/mmk4e4pkoo8

Im also getting a code 25 which says "The air/fuel ratio feedback compensation vlave or additive control valve continues at the upper (lean) or lower (rich) limit for a certain period of time." And noticing this I had another set of fuel injectors that was off my old celica which ran just fine and put those on so I dont think its the injectors. Any help is appreciated.

This post has been edited by rapid36: May 17, 2016 - 11:43 AM

[Box]

Have you cleaned the idle air control valve?

[rapid36]

Have you cleaned the idle air control valve?

Hmm not sure how in depth I went with the cleaning but before I swapped the throttle body I took the throttle body off and sprayed everywhere with throttle body cleaner, Not sure If I ever took off the IAC which I think is at the bottom of the throttle body if im correct (pretty sure I did, or at least I thought I did). And then I swapped out the throttle body later with a different one with a different IAC and still had the same result. Although I dont know how detailed I need to be when cleaning the IAC, maybe I should take it off from the throttle body and give it a good cleaning again, couldn't hurt I imagine. Thank you, ill give that a try.