P2006 & P2070 Codes

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Mar 2, 2019 | 01:52 PM

#11

Ronnie Eaton

Audiworld Junior Member

Joined: Mar 2019

Posts: 6

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Quote:

Originally Posted by 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).

Hello, sorry to resurrect but the thread just stopped. I am having similar issues to the previous guy.

P2070 and P2404
No vacuum leak anywhere... I’ve checked with a vacuum pump.
Taken the upper plenum off and the flaps seem to be on the correct side of the divider

How can you tell if it’s a failed actuator? Do I pull a vacuum with a pump directly to the line with the actuator? What am I looking for to tell me either it’s good or not?

Thanks for any info

Mar 2, 2019 | 03:33 PM

#12

Ronnie Eaton

Audiworld Junior Member

Joined: Mar 2019

Posts: 6

Likes: 0

I went out and watched the flaps as I applied vacuum. They both seem to be working without binding. They both start opening around 7in.Hg of vacuum and are completely open around 14in.Hg of vacuum. Again, I have checked every line I can find for vacuum leaks by applying a vacuum and watching for any drop; there is no drop in any of the lines. Could there be something wrong with the Intake Manifold Tuning (IMT) Valve Position Sensor?