It's well known in my car that continued arming and disarming of the anti lock theft system eventually kills the battery and combined with usage of anything like windows or radio or inverter with the car not running, usually kills the battery within a year. This being the last battery in the warranty replacement, I haven't been doing any of those things except using the auto locks. No corrosion, everything is clean and tight. After charging the battery today, I put on the volt meter and saw that it took only a few times using auto locks on and off for the meter to go down below 10v.
Good news is I fixed the wild rpm fluctuation issue, as it was what I thought it was initially, the tube that runs from the front of super charger around rear to a wiring socket behind it. Because I had broken it on the side a couple years back, and it did the same thing. This time it was disconnected at that rear socket where I couldn't see that it was hiding right beneath it without actually being connected. But I was inspecting the wiring again and saw it was out of socket. Now my rpm and mpg are back to normal.
Anyone know what those two wiring sockets are in the rear with the SC tube running to one of them, and what the tube is? I have included a picture, but that being disconnects causes wild RPM and bad MPG alone.
Bad news is auto shops aren't loaning the OBD tool anymore so I don't know how they are figuring out what's wrong with anything, so I have to drive across town to borrow my brother's, read and delete codes, and drive cycle again. Car still misfiring and sputtering on acceleration but cruises fine for now.
Meantime I'm trying to find some wiring diagrams and will go thru entire PCM pins or attempt to. I don't even know how to do it but I'm sure somebody does.