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Question about ignition timing

What should a normal ignition timing look like?

I was watching the tool giveaway video that Scotty posted today and he mentioned that the ignition timing should be a steady line on the scanner. I've got the same scan tool and my ignition timing is all over at idle. I've attached a photo of what my scanner is showing. Does that look like a normal idle ignition timing? It's hard to read but the min was 6.5 and the max was 16.0. My car is a 2009 Hyundai Sonatta 2.4l and has a noticeable rough idle.

you have a problem, that is not normal to move that far up and down at idle and in gear.

Thanks! That's what I figured.What should I tell my mechanic? My ignition timing is off and have him fix it?

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