Code p0016, timing belt?

Hi,

The code indicates there is an excessive variance between the camshaft position sensor (CMP) and the crankshaft position sensor (CKP). If the deviation between CKPS and CMPS is bigger than the threshold value, PCM sets DTC P0016.

To answer your question, yes, if the timing is a tooth-off, it could cause this. However, please understand there are other things. For example, if one of the sensors is faulty, there is an oil path that is clogged, and so on can cause the code. See pic below.

I attached a pic below showing the possible causes.

Other than the code, how does the engine run? Is it smooth or does it have a rough idle and other drivability issues?

Let me know.

joe

See pic below.

Thank you for that! It runs perfectly fine. I wouldn't even know that it was throwing a severe code if it wasn't for it showing the code. I was able to drive it back to the mechanic shop and everything.

Hi,

If it is running properly and there is no power loss, chances are it is a connector issue. Is the shop planning to check things for you?

Let me know.

joe

Yes, I left the car there today for them to see what's wrong. I will let you know what they say.

Hi,

Thanks for the update. I look forward to hearing what is found. I'm interested in knowing what is found.

Take care,

Joe

So, we took it to another shop, and they retimed it and replaced a coil. But the light is still popping up. I'm going to take it back tomorrow and ask them to check the connector.

Sounds like a plan. Something isn't adding up or we are missing something very simple. I don't recall you indicating this was an issue prior to the original repairs, so if it isn't the belt, chances are a wire is damaged.

Let me know what is found. I'm really curious at this point.

Take care of yourself.

Joe

It wasn't an issue but when we brought the car back to the mechanic shop, they had the car shaking. I guess they took out a coil. We went to a second shop that's where they retimed it and replaced the coil. We took it back because the light came on they replaced the crankshaft sensor and oil control valve. Still nothing. Can you explain what exactly to tell them about connector issues? Because at this point it seems like they are guessing.

Hi,

As far as the connections are concerned, they need to be tight, free of corrosion and undamaged. I attached the possible causes (since we know the belt is correct).

Ask if they checked any of the things listed. Also, if they need diagnostic steps, let me know and I'll get them for you.

Take care,

Joe

See pic below. Note: CMPS is the camshaft position sensor, CKPS is the crankshaft position sensor, OCV is the oil control valve, CVVT is the continuously variable valve timing. The PCM is the powertrain control module.

So, after taking it to the third shop, which was the dealership, they finally figured out the problem, which was it needed a new cam phaser and the code finally went off.

Hi,

Thank you for the update. I'm glad to know the problem has been resolved.

Feel free to come back anytime in the future if you have questions.

Take care,

joe