P000D B Camshaft Position Slow Response Bank 2 flashing check engine - Jeep Wrangler Forum
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Old 01-22-2020, 06:25 PM
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P000D B Camshaft Position Slow Response Bank 2 flashing check engine

My daughter was driving her 2012 Wrangler with 90,000 miles on it when it started running erratically and the check engine light started flashing. I have trained her well so she immediately pulled over and shut it off. I had her try to restart it and it wouldn't start the first few tries. It finally started and the light was off so she drove home still running a little rough. She has a scanner and pulled code P000D B Camshaft Position Slow Response Bank 2 (no other codes). She reset it and took it to the dealer now running as usual. They checked the cam sensors and crank sensor while driving it. Visually inspected the wiring going to them and found nothing. All they found with diagnostics was a very slight misfire from time to time which new plugs will take care of. The dealers only suggestion was maybe dirt or something intermittently blocked one of the sensors. 5W-30 oil was new about 300 miles prior so it is clean and up to level.

Any thoughts on additional items to look at. I almost wish something had been found to explain it as the flashing check engine light scares me a bit. Now we just have to hope it just doesn't happen again when she is on the road home from school or something.





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Old 01-22-2020, 08:57 PM   #2
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That code can be related to the cam phaser, the VVT solenoid, oil control valve or the wiring/pcm control of the solenoid.

The PCM will attempt to move the cam phaser and it tracks it's current position vs desired position. When those are off for too long of a time this code gets set.

When troubleshooting this, a tech will look in a scan tool and look at live data. He will compare the two PIDs of desired vs actual and compare them. If they don't look right, then you have to look at VVT components.

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Old 01-23-2020, 08:17 AM   #3
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Have you owned it long? I'm thinking debris in the oil also is possible.If it wasn't well maintained with regular oil changes maybe some dirt got dislodged with the new oil. Same oil "brand/type/ weight" that has always been used in this jeep?
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Old 01-23-2020, 07:14 PM   #4
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Might want to change that cam sensor. Easy DIY job, about $40 for the part.

If it happens again, change the cam phaser(s). About $80 each I believe, easy job as well.
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Old 01-23-2020, 07:39 PM
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Tech looked at live data and stated all was well within spec. Even swapped the cam sensors around to double check. They said all data currently looks fine and couldn't explain why it tripped the code. I don't believe any of the VVT components were inspected however.



We have had it about two years and its gone through 3 oil changes all with the same brand synthetic 5w/30. I have done the changes myself and the oil coming out showed no signs of an abused motor with any sort of debris. Not sure what was used prior to us owning it.



I'm fine with it running okay now. Just concerned if she gets out on the road by herself coming home from school and it should happen again. Looking to be proactive and change some of the more common inexpensive things out myself to help avoid it if I can.
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Old 01-23-2020, 07:41 PM
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I think I will start with both cam sensors and the crank sensor. I am researching cam phasers now.
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Old 01-24-2020, 09:09 AM   #7
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I think I will start with both cam sensors and the crank sensor. I am researching cam phasers now.
I wouldn't do anything...for now. Wait and see if the code comes back. No sense blindly changing parts. Especially when you don't know if those are the ones that are causing the problem.

But I do encourage you to learn what cam phasers do. It's actually pretty cool tech. Basically, it allows the cam timing to change based on the computer's wishes. Advance timing on a cam works better conditions while retarded or normal timing works better in others. The phaser, through the use of oil pressure, can change the relation of the cam to the cam timing gear. This is why the type of oil and oil filter we use in modern engines are so important.
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Old 01-24-2020, 10:31 AM   #8
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^ agreed. Either wait or just proactively change that one cam position sensor that gave the code if that gives you piece of mind. Then wait to see if anything else happens.

I recently worked on a JK with a fellow forum member. When we started it it took 4-5 long cranks to start and ran OK but didn't sound 100% right.

Then we remembered we had unplugged a cam position sensor and sure enough forgot to plug it back in. Once we did, back to normal!
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Old 01-25-2020, 10:08 AM
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I agree, ON HOLD FOR NOW.
Its been a few days and no code coming back. I do admit it doesn't get driven much though while she has classes during the week. She walks most days to campus. One thing that my daughter did mention was what she thinks was the slight smell of hot wires when she initially looked under the hood. The techs visually checked wiring on my request and it seemed okay. Could a phaser solenoid going out produce that smell?


This is one of those times I wish the jeep wasn't 4 hours from my garage.
Thank you everyone!
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Old 01-25-2020, 11:21 AM   #10
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Ugh. I had a slight smell of burning wires on mine, then all kinds of weird problems and codes.
Turned out the swaybar connector had shorted and caused canbus errors.

So it may be a bad wire or connector somewhere which would suck because that’s a pain to diagnose.

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