89 vert autotragic

When I first start the car no matter the temperature outside it always surges from idle to about 1600rpm. It only does this when in neutral/park and goes away when I move the car and when the car warms up it goes away almost completely which I will get to in a second...

When warm and I shut it off to go inside to a store and re start it, it will almost do the same thing for about 15 seconds then goes away as before.

I have tried the following things:

Adjusted TPS as per manual
New plugs and wires
New fuel filter

Any help would be appreciated guys as it's very annoying and disturbs my neighbors.

Edit: now that I thought about it it's more like a build up of RPMs and then just cuts out and drops fast then repeats ...

 

Check the operation of the thermowax.

 

Upon closer inspection these are loafers haha (The Simpsons reference - McBain)

Anyways. I checked the make sure everything was there and I believe it was. I checked to see if the little pin the moves operates normally and it doesn't move from cold or warm. I even tried hot water on the area.
It's touching the lever but not doing anything. The throttle body seems to be working fine as in I pushed the lever by hand and it does as intended. Push one way and it rises, pull the other way it almost stalls.

I also tried looking for the adjustment screw on the accelerated warm up lever but could not see anything from above. I took some photos but still couldn't see it. I wanted to see if I could adjust it away or closer to it to see if it made a difference.

 

I am also having this problem (s5 na) i suspect its the theremowax and when i push in the dashpot it changes nothing so that butterfly stays open

 

re-check the TPS readings (because it hot now) change a new thermostat, clean/scrub 6-pin connector with alcohol. im having the uissue with my turbo s5. hope this helps out