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Waveform Analysis Advice

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1 week 15 hours ago #93206 by Omega
Waveform Analysis Advice was created by Omega
Hey all, I have a 2017 Kia Forte throwing a P0017, crank and cam correlation. The code throws after about 15 to 20 seconds of idling, set the CEL while I was scoping. I do believe I heard a clatter on cold start this morning, I’m going to confirm the noise tomorrow. Service information gives a sample piece of data to compare for crank and cam with a note for how many “tooth” should be counted “approximately” between the missing gap of the crank to the cam signals. So service info says about 4 or 5 between the gap and initial exhaust cam signal but I am counting 7 when I compare mine to theirs. Do you guys think this is enough evidence to call jumped timing or are there other values that you would confirm first?
*Also, is it normal for the waveform for the exhaust control valve to look different from the intake control valve signal? I’m sure if I find a specific code in service information for the exhaust control valve maybe there’s a sample form. 

Waveform order - yellow is crank signal, green is intake came, blue is exhaust cam, red is intake oil control valve - same set up as service info
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1 week 15 hours ago #93207 by Omega
Replied by Omega on topic Waveform Analysis Advice
Other info; oil level is good, has been serviced recently, customer states the CEL has been on for months apparently, P0106 in addition upon arrival (MAP, has not recent - line of thought is it set due to main performance issue), pretty decent valve cover leak - unsure of typical service intervals. Wish I could’ve seen oil condition before the service. After a short period of running it will have a hazy fog in the crankcase if I pull the oil cap, I see this on a decent amount of vehicles though and always wonder if it’s normal or due to neglect. I want to say not far under or above 150k?

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5 days 18 hours ago #93215 by Noah
Replied by Noah on topic Waveform Analysis Advice
The waveform you captured didn't post, so I can't compare, but if there is discrepancy then the timing is indeed off setting the code.
I'm not sure if this applies to your engine but there are some where the lock pin comes out of the exhaust phaser and pushes into the camshaft. Very common to need a camshaft and phaser.

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5 days 17 hours ago #93218 by Omega
Replied by Omega on topic Waveform Analysis Advice
I see now that only the service info image posted. I’m attempting to post the picture again. My recommendation was to pull the cover an inspect and pending confirmation of worn components leading to the chain jumping and no other damage then to perform the timing kit work. I will do some research so I know what to look for if it’s not something that’s going to be immediately obvious outside of damage to the cam 
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