jujuC6

This past Monday my car shut off while parked and running, something it has never done. I turned it on again and it was fine the whole day. Wed. and today I got CELs and got these codes:

18502 - Intake Manifold Tuning Valve (Bank 1)
P2070 - 006 - Stuck Open
Freeze Frame:
Fault Status: 00100001
Fault Priority: 2
Fault Frequency: 60
Reset counter: 40
Mileage: 210372 km
Time Indication: 0
Date: 2013.01.16
Time: 15:34:47

Freeze Frame:
RPM: 1024 /min
Mass Air / Rev.: 185.3 mg/str
Temperature: 78.0°C
Idle
Absolute Pres.: 457.5 mbar
Speed: 20.0 km/h

18438 - Intake Manifold Flap; Bank 1
P2006 - 006 - Stuck Closed - MIL ON
Freeze Frame:
Fault Status: 10100001
Fault Priority: 4
Fault Frequency: 5
Reset counter: 40
Mileage: 210685 km
Time Indication: 0
Date: 2013.01.22
Time: 06:23:04

Freeze Frame:
RPM: 2080 /min
Mass Air / Rev.: 365.2 mg/str
Temperature: 34.5°C
Part Throttle
Voltage: 3.020 V
Speed: 34.0 km/h

18439 - Intake Manifold Flap; Bank 2
P2007 - 006 - Stuck Closed - MIL ON
Freeze Frame:
Fault Status: 10100001
Fault Priority: 4
Fault Frequency: 5
Reset counter: 40
Mileage: 210685 km
Time Indication: 0
Date: 2013.01.22
Time: 06:23:04

Freeze Frame:
RPM: 2080 /min
Mass Air / Rev.: 365.2 mg/str
Temperature: 34.5°C
Part Throttle
Voltage: 2.680 V
Speed: 34.0 km/h

Read somewhere this most likely is a leaky vacuum hose and very likely the one pointed in the picture. Has anyone had and fixed this problem? Am I on the right path in starting with the vacuum lines in the diagram? Will look at this over the weekend.

audi bug

Come on JujuC6!
Quick search should lead to this one.
https://www.audiworld.com/forums/sho...8#post24276198

jujuC6

Sorry AudiBug and thanks a lot for the pointers on how to tackle this job. I did a general search in Google and came across a bunch of stuff from all different forums but not this particular post which is the most helpful of all. Thank you.

aparmar

Had similar issues. Took cover off and found the most likely culprit. The vacuum line was broken. Going to work on that to see if it makes a difference.

Enzo Monza

Hi, my Audi A5 3.2 FSI 2008 sometimes turn off alone. I put the Vag Com scan and It give me 1 Fault:
P2070
Intake Manifold Tuning Valve Stuck Open.

How can I fix this problem? I checked the vacuum line and its okey...

A6Gary

Use a vacuum pump to check the actuator of each lower intake manifold, and the vacuum lines. I had a failed actuator on my '06 A6 Avant that caused me to replace the lower manifold assembly (the actuator is not sold separately).

Enzo Monza

A6Gary

The vacuum actuator, which is domed shape, is located on the end of the lower intake manifold. One is located on the engine front, and the other is located towards the engine rear. Follow the vacuum lines to the end, and you'll see the actuator.

Enzo Monza

A6Gary

I am not sure what your pics are illustrating. But it appears you are showing the intake ports and valves in the head. The lower intake manifold contains the flaps that interface with the diverter plates that are in the intake ports. The diverter plates don't appear in your photos. Did you remove them?