CMP Sensor (G40) / Engine Speed Sensor (G28) Incorrect Correlation

[Golamaudi]

Hello all,

a6 PP 2013
2 L TFSI

I used to get this code intermittently. today when I went to a place and after my stop, I was having a hard time starting the car. The car did not start right away, but it did after 5/6 cranks (a little longer than usual).

Checked the code and found P0016. But if I clear the code (with ACC on mode) and then the car starts right away like normal and then code come back. What I notice there are no other codes but feels less power in the motor and little noisier.

CMP Sensor (G40) / Engine Speed Sensor (G28)
P0016 00 [175] - Incorrect Correlation

Also checked camshaft phase adaptation found wired degrees, people are talking 5 degrees is bad but I got -26.94. It has 120,000 miles, always runs great. I swapped the Cam position sensor but no luck. Just ordered a crankshaft position sensor.
Any response appreciated, thankyou.

[IMG]C:\Users\mainudding\Downloads\Capture.PNG[/IMG]

1 Fault Found:

4096 - Bank 1: CMP Sensor (G40) / Engine Speed Sensor (G28)
P0016 00 [175] - Incorrect Correlation
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 199241 km
Date: 2020.05.30
Time: 22:28:27

Engine speed: 1033.50 /min
Normed load value: 13.7 %
Vehicle speed: 16 km/h
Coolant temperature: 72 °C

[A U D I]

I would suggest to stop driving the car until you get it sorted out before you have costly damage happened.
How many miles on the oil and what filter brand is being used ?

[Freemann]

Hi Guys,

Any update regarding the problem of this is issue?

Best regards.

[Thomas@TAI-VW]

Get chain done ASAP!!! Or you will need new head/valves and chain!

[Valpo A7]

Hard starting could mean a problem with the crank sensor or you actually have a timing problem. You can get an aftermarket crank sensor fairly cheap and if that does not clear the problem then all roads lead to timing chains at that point. If you are getting the 16 code and still starts fairly easily then it’s time to start looking for a shop to do the work unless you plan to do the work yourself. If you are getting the 16 code AND hard to start then it’s time to get the work done now.

Codes and still starts and runs good is a sign that you have a problem forming. Codes and hard to start means it’s time to get the work done now.

[Freemann]

Brought it to Audi and they did some sensor/wiring troubleshooting for a couple hours without success. Their next step according to them is to drop the engine to look at mechanical problems.

I brought it back home to do more testing myself, but cannot find anything wrong electrically. I am debating getting a second opinion given they told me there was 30hrs of labor just to drop the engine and put it back in...

Where are you at with your fault?


Envoyé de mon iPhone en utilisant Tapatalk

Hi,

I fixed the problem myself. After ruling out any solenoids or wiring. I opened up the holes where the camshaft locking tool should go when you do a timing job. You need to remove some wiring on top of the camshaftcover There I could see that the camshafts IN and EX didn't line up. It turned out that a small plastic piece of the chain guide between the intake en exhaust camshaft broke off. This resulted in the intake camshaft being off by 1 tooth. I managed to do the repair with the engine still in the car. And just removing the upper timing chain cover on the driver side. It was quite a !@#$% to do because space is so limited but I managed it and the car was running fine after this repair. You need special tools to do this job. The plastic part is self only cost 10 dollar. After I fixed this problem my turbo's died :). But fixed this also for around 800 dollar. And now the car is drive perfect.

Best regards,

Marvin