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I jumped the 2 connectors on the switch connector with key on, no dice. Not expecting new switch to help, comes in Monday.
I'm guessing it is the old TRW relay or the wires on its connector. Or...

This is a connector other than the 2 code reader connectors.
I replaced the under dash relay early on, no help. The connector looks ok to me, but I could be wrong.
My AC hasn't worked in many...

10108

Progress: Drained coolant, removed oil filter, removed fan switch/sensor, determined that I have the wrong new sensor (probably the gauge sending one), so ordered correct one, due here next...

Cool then. Thanks much!

Yep, thanks. That is what I was thinking. Just wondered what it might be affecting.

Just found this tiny hose broken, near firewall passenger side, assume it's a vacuum hose. Can anyone tell me what is is exactly?

10107

Yes, been thinking about that. However, besides the fact that I just recently flushed the cooling system, that also would mean putting a new filter and oil back in/on, to start the engine, since I...

Well, I got the ps fluid changed, and decided to change the oil, even though it only has 600 miles on it, it is also over 10 years old. So now all fluids have been changed.
I was about to put the...

I turned on the A/C switch, and the fan did not come on, but the A/C hasn't worked this century, so I don't know if that was a good test or not.
In my pic from below, then, the fan temp sensor is...

I don't know why the system wouldn't be well-pressurized, unless there is air in the system from my last flush.
Wow, so much great info. I'm blessed to have your help- you're a guru and a gentleman!

It was getting to the top of the normal range on the dash gauge.
If a new temp switch doesn't fix it, I'm thinking I'll punt to an aftermarket controller.

It's amazing how either a new fuel pump or cleaning some wiring cleared up all the weird codes I was getting before- it was even telling me my engine was 5 and 7 and 8 cylinders!
Should I hold the...

Well, now I have accomplished replacement of my fuel tank, pump, sending unit and filter. I had the injectors cleaned and one replaced, so wanted to make sure I wasn't just pumping any rust
from...

Runs very well... codes soon.

Thanks for the advice, I will definitely look into those resources.
The reason I suspect the ECM more than that though is that electronics guys say the capacitors (like the ones that went out in my...

All great info, thanks much.
I still haven't taken it out and looked yet, but I think I'd like to pm you majestic, for a backup if nothing else.

Excellent thanks!
I think I'll start with checking and cleaning wiring, then looking at the inside of my computer, when the weather gets better.

'86, so I assume it's a PE. (I'm original owner)
Sorry I'm nooby, I wouldn't be sure where to start replacing wiring.
Don't even know what the PiMP is.
Maybe I should open the computer and...

Computers getting harder to find than they used to be?
Put on a code reader for the first time in my 86, and ER codes are crazy, different every time. Thinking wiring broken down, but hoping a...

Is that shop in Alvarado still there? Not seeing it with a recent search.

After several years, no guarantee some of these may have accidentally entered the group.
Is my center console crooked, or is that normal? It sure felt like it installed in original holes securely....

Wow, thanks for the replies/pics. I have finally gotten it al reinstalled, albeit with a few suspiciously leftover screws and bolts. I had the screws, not many bolts, so I used them. Had to add...

So, I took my dash pad off many years ago, and unfortunately also took out several screws holding the upper dash body down.
So now I have a pile of various screws to reinstall, many up near the...

Someone else said IC to TB was 2 1/4". Is there a difference '84-'86?

Thanks much! Are those measurements ID or OD?