unstable idlling-stalling im going nuts

[Ensoniq5]

Could be the problem, it would certainly explain the dodgy idling. There are a couple of things that could be the cause other than a cactus TPS, such as gunge in the TB fouling the butterfly valve or too much tension on the throttle cable. Otherwise if you can't get a stable closed throttle position on the TPS I'd look at replacing it.

[GRH]

Could be the problem, it would certainly explain the dodgy idling. There are a couple of things that could be the cause other than a cactus TPS, such as gunge in the TB fouling the butterfly valve or too much tension on the throttle cable. Otherwise if you can't get a stable closed throttle position on the TPS I'd look at replacing it.

hi again
as i was checking where to buy the TPS i came accross another part that is commonly associated with bad idling.. site had it listed as idle air control motor, IAC, now i found something looks like shown under the throttle body, looks exactly same, tho i thought this was also called idle speed motor and that's the one previous owner had replaced. i can see the part nice and shiny and it looks new. however, not knowing how to test it, i pulled it's plug while car was idling and noticed no effect.
i turned off the engine and started again with this cable unplugged and again noticed no difference in idling at all.. ac on off, put in D etc.. its exactly doing same thing as it is doing with this cable plugged .
i'm a bit puzzled... the connector plug looks clean inside too... is it possible new part is faulty? or any other possibility?
shouln't idling change when i unplug this ?

this is the part https://www.ebay.com.au/itm/IAC-for-...YAAOSwqGlat8Bo