Wiring diagram for ECT sensor and sender units needed

There has been a dove near the garage, I will try a better one once it occurs, it just happens from time to time and unless it has some relevance to the stalling problem I would never have cared for it.

I first knew of it when the engine was once under test, it kept on shutting down but then I heard that sound once the engine shut off, when the engine is working it is impossible to hear this low-pitch ticking with a hissing tone. I will use a sensitive microphone to record the sound next time it happens.

It has a less priority compared to the stalling problem and/or the scanning feasibility which demands checking the two wires of the DLC (orange/black and the tan one) and where do they lead?

Telepathy at its best! I phoned the mechanic 2 hours ago so that he be looking for his pressure measuring apparatus( ever since our first exchanges I asked him to do this test but he seems to have lost the tool amid the huge pile of items he keeps in his garage store. I am heading for Istanbul to deal with a tumor in my wife's brain, this will force me to postpone all diagnosis /repair attempts for not less than 45 days, praying the health issue comes out fine so that I can find the mood and time to resume our exchanges and attempts here. I am very grateful to you and to all who cared to help.

Hi Dear Roy, and hi, everybody else who had been along this thread lately (Danny L. - Steve CARADIODOC and Colby Stevenson2000). AS I am in Istanbul now, a friend of a friend of mine suggested that he be buying a PCM for me and shipping it on USPS or DHL. I need your help dear friends.

1. The man is using this source for buying the PCM (www. Car-part. Com), I have to do the picking action on the website but as you can see in the attached image (1st attachment): there are two options for almost the same engine of mine, which one should I follow: ID 16183978 or ID 16191947)?
2. How to tell if the PCM they are referring to is what I really need (the one behind that frontal kick panel, having 2 pink connectors and another blue one, and not the smaller one that is situated to the right side of that yet also having a PCM/ECM/ECU title which can be confusing when buying as the PCM term is common to both items. The second attachment shows both items as they are in my car.
3. I am not a fan of refurbished items especially when it comes to a sophisticated item like this one, do you have a better source to head for in case all that is found here is not dependable? Kindly do me the favor of seeing the list behind both options (ID 16183978 or ID 16191947) excluding all models other than 1995 so only a few items are left that way?
Lots of thanks to you all.

You are 100% right, I could never dispense with your knowledge. Basically, I had no idea why these items (PCM/ECM) have too many codes and/or numbers on their respective labels. Three months ago, some PCM/ECM specialist in Baghdad told me on the phone that I need to find me a second-hand PCM that has the first 2 digits ( from right) matching mine, so in my own case, he was referring to the *****78 as shown in the attached image ). He also told me that if I fail to get another PCM having the same 4-letters matching mine( he was referring to the "BJSX" code upright in the attached image ) then I can take off my own PCM's EPROM and replace that in the newly bought ( replacement) PCM so that the data of my car is preserved and the engine resumes its functionality again. To tell you the truth, the man has some 40 years skill in this intricate specialty but I could never agree to it 100% unless I get a confirmation from you. Due to lack of creditable knowledge here, I mistook the ID number on the label of my own PCM to be some serial number so it could be one of thousand others, it turned out through your reply that we have 2 specific IDs and just those. A big big thank you my dear friend.
P.S 1: What does the smaller PCM/ECM/ECU ( 2nd image here) actually do? Does it control any of the engine and/or automatic transmission functions?
P.S 2: I went through the 21 pages of PCMs offered for sale on that website ( www. Car-part. Com) within the fist option of ( ID 16183978 ), there are many ones under( Pontiac Grand Am 1995- 2.3 L ) but there was no one with the specific ( BJSX ) term. Do you agree to the idea of replacing the EPROM of any of these items? Or do you suggest a better site for purchasing this PCM?

Roy dear friend, I am grateful to you for your patience with my curiosity, you should be lecturing all these mechanics here in Iraq who had been "radiating" false info all these years telling me that this is the PCM intended for the automatic transmission in specific. I had to make sure of it because I need to focus on (and buy) the module that is relevant to the stalling of my engine and just that. On the other hand, any idea of how essential is the 4-letters term to picking the replacement PCM? Why do so many PCMs on that car-part. Com include the relevant term within the specifications field? Mine is BJSX, does it make a difference when buying a PCM with another combination or is it what replacing the EPROM can solve? Also: What do you mean by flashing? Is it a re-programming act? The image attached had been included in an earlier reply regarding the smaller module, I have no idea why did they call it PCM/ECM/ECU.

Hello dear Danny. I am about to buy a PCM at some $250.00 USD. I provided the VIN and I am waiting for the purchase order to support payment as I am in Turkey right now and a friend in USA to receive it and forward it to me because that company ships to US states only. Thank you for all the help you always provide.

This is my car's VIN.

Yes, I did based on the info our friends here did provide as well as that company's own terms, here it is attached to my reply.