High Idle when hot - low power on up hill

[fixkick]

ok , seems soda choice 1 is most safe, (sodium bicarbonate or baking soda )
OBD2 16pins. conn3 (photo 3)
what pins are populated.? i cant tell with photo which are , only some...
IS #3 conn, under dash? where is that?

16pin conn3, pins 2, 4,5 , 7 , 10 and 16 are wired. (2,7,10 , one or two pins can be missing but never all 3)

conn2, is missing a pin. and which side is the INDEX tab. purple is pin A(1) blue-yellow is diag pin, see that color?

conn1. is not this missing pin too? and is blue-yellow present
there are lots of unused connectors, the DLC underhood has rubber cap, if no cap seen its not DLC



the 4 locations are (driver seated)
1: obd2 right knee, seated as driver, LHD< left hand drive. in the cab.
2: just in front of battery, under hood next 3
3: right front head light shell.
4: left strut tower,

The good news is that today I put the part back on and it seem sthat all work good - seems like the idle problem is solved !
The bad news is that the low power problem and the strange sound from the low part of the engine specially on uphill (sound that reminds an old beatle car whlie driving) - is still exists...

I looked for the OBD1 connectors for the check and found those 3:


Didn't make the DTC check because didn't know which one of the switches to use
and what to do with them exactly ... seems like need to use the one of the first two...

Going to read more about it...
Any tips will be very appreciated

---

According to the videos on youtube the electrolisys can do magic with removing rust...

Here is 2 videos:
https://www.youtube.com/watch?v=qi8qIxK4IlA
https://www.youtube.com/watch?v=q_fAauPKH4o

There is 2 options to make the liquid:
1. (my option) Water + Cleaning soda
2. Water + distilled vinegar + salt