Where do I go from here?

Hey Paul, how are you? I have a 2008 Chevy Cobalt, 2.2L I was checking the five volt reference on all my sensors. But when I checked my one sensor, all the voltage on my other sensors started to climb. Do you have any idea what might be causing this? I also have 11.62 volts coming of my bock ground. I fixed my block ground because the wires at the terminal were corroded. I attached a new ring terminal, and.attached the ring terminal to a different position on my block. I have a solid connection to my block, but I was wondering if there could be a short in another location? Well any information you could give me would be greatly appreciated. I attached some pics so you could see exactly what I'm talking about. Hope you have a good day. Thanks, Pat.

Does the car start/run?

Which sensor is the one that makes the voltage readings climb on the other sensors, how do you connect your voltmeter and do you use simultaneously a second voltmeter to measure the other sensors?

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