The OB is running again after the weekend. Put the engine back (by myself) on Friday night. For some reason the water temp guage is not working. But the car runs, has no fluid leaks and and no mixing of oil and water.
I will pull of the intake manifold again tonight to check all the wiring. Even though the guage cluster sounds like a good idea the car is not idling correctly and the fans run all the time. I am sure that the ECM needs to see a signal from the engine temp sensor for proper engine management.
Maybe I should rather make sure I have all the connectors plugged in! Got the engine temp sensor, but did not get the thermometer one. Car runs good now, no codes but still no temp gauge. I will get that tomorrow.
I remember what a Medusa's-hair tangle of connectors we found under the manifold. Looking back, I wonder if we really had to pull all of those; we might have been able to simply unbolt the manifold from the heads, and let it rest on the block.
I am sure some of that stuff could have stayed. The 2 stray connectors that got me was disconnected when I did the gaskets for the water pipe. And they sit below that tangled mess that would make Medusa jealous.