What can it be?!

My taco idles about 200rpm over idle 750.
Things done
New vacuum hoses clamps
Iac cleaned new gaskets
Tb cleaned new gaskets
Maf cleaned
Kn air filter
New plenum gaskets
Elbow greased plenum
New fuel filter
New water pump t belt pulleys tensioner
New v cover gaskets

Symptoms
When first started idles perfect
After putting in gear around 850-950 rpm if I slap it around 5k rpms it goes back to perfect idle

Any suggestions much appreciated

 

Manual tran

 

No codes tune up done 2 months ago

 

Are you sure the throttle is closing completely? That's all I got.

 

You do lube the throttle linkage at least at every oil change ??

Have you checked around the pedal that the pedal is able to move freely ??

 

Pedal is moving freely did not lube tb. I just went thru my first oil change last month. What is best for lubing white lithium grease. Graphite grease or just plain?

 

Mine did this after cleaning sensors and throttle boddy and changing vaccum hoses. After about 4 days everything was back to normal

 

Could it be related to your AC? Usually when the defrost/AC is on the idle speed is bumped up due to the increased load of the compressor. I can't say for sure this happens on my truck, never noticed, but every other car I have had did this. I don't know how this functions though, i.e. what to test or which might be malfunctioning if it is. However you might try cycling the AC on and off by hitting the AC button (with the HVAC fan on) and see if you notice any change in the idle speed.

 

I use Kroil to spray the throttle linkage because I always have a can handy

 

@grntacoma I'll see its been 2 days so far.

@travelfeet as I turn on heater/fan they jump up and than settle. With ac on yes a touch higher

@Wyoming09 Regardless if it will help thank ou for the tip

@DrZ yes it's closing correctly

Thank you for response and possible resolutions I'll keep looking if you'd come across Sth please post it if I find something I'll do the same