You need to look also at the signal polarity.
It is shown correctly in your video, but it also depends on which side of the sensor you hook up the probe.
I had it in the past, that an inductive sensor like this one was wired wrong inside and the signal was flipped.
This resulted - of course - in a time delay that was engine speed depending and caused some real problems.
My client at the time was a large OEM and this problem slipped through the quality control.
I will look into the signal polarity to ensure it's correct. I didn't think it was gong to be a big deal, since this is an A/C sine wave. I could see it effecting my reading when comparing cam/crank signals to ensure the timing is correct. So unless my brain says otherwise, I will double check my polarity. Also on a related note. Are there any wire piercing probes that you guys would recommend? I used some really nice Flukes (repackaged Pomonas) and I like them alot. The only problem is they are 50/pair
First, the voltage issue. The voltage shown on the scope may be correct; we can't tell from here if you have probe attenuation and scope probe settings correct. Or even if your probes have adjustable attenuation. Is there a "1x/10x" switch on the probe? Is there a setting to match in the scope software?
Second... it is _not_ really an "AC sine wave". Look at the horizontal spacing of the top peaks vs. the bottom peaks. You will see that the top peaks have a slight delay after the small location pulse, but the bottom peaks do not. If you have the signal wires (polarity) reversed from what the control unit is expecting or needing, this difference may make a difference. I see that the Trigger Value is given as a positive number but the Trigger Level indicator mat be at or below the channel baseline. This makes me wonder if you have a channel inverted in the scope. Also, in general for the Input Coupling we would use DC coupling rather than the AC coupling you've got set, unless there is a specific reason for using AC coupling. Don't make the mistake of thinking that "AC coupling" is "for AC signals" -- AC coupling removes DC offset information, and may conceal an error like having the wires swapped from what they should be.
Third: The trigger issue. I've marked up your screenshot to show the relevant trigger indications, and where I'd try setting the trigger to obtain a stable display. Once you've got a stable display you should be able to "zoom" the horizontal timebase to show a single period, and change the "trigger delay" or "horizontal delay" (however your scope terms it) to scan horizontally until you find the exact peak that you want to look at.
Some scopes, like the Rigol DS1054Z, have trigger options (Runt, Nth Edge, etc.) that could cause the scope to trigger precisely on the small indicator peak instead of the "ordinary" larger peaks.
Wire piercing probes? For quality, stick with the Pomonas. On a budget (like me).... use a large sewing needle and the scope probe's springhook tip .....
As far as troubleshooting goes.... I have been burned several times by accepting information from "another technician" when troubleshooting various systems. I've learned to start from the beginning, no matter what someone else who worked on it before might say. Here's a laugh: I used to work in an aircraft engine overhaul facility. Some piston aircraft engines come in "matching pairs", one rotating CW and the other rotating CCW. One day we had one on the test stand that just wouldn't start no matter what. Pulling covers showed that the valve timing was all screwed up. I went to the BOM records looking at part numbers, and discovered that the build-up mechanic had been issued... and had installed... a "left turning" camshaft in a "right-turning" engine. Fortunately this is not an interference-type engine and nothing was damaged, other than the ego of the build-up guy, who had to tear it all apart and rebuild it again with the "right" part...