16706 - Engine Speed Sensor (G28)

[Pellesin]

Hello all!

I`ve got a 2004 A8 4,2 petrol (BFM)

Wife called the other day. "It wont start"!

I hooked up the VAG-COM and among the usual complaints as engine mount and system too lean messages I had a new one:

16706 - Engine Speed Sensor (G28)
P0322 - 004 - No Signal - Intermittent

The car starts eventually - so far it has not died when driven.

I could not find any info about this sensor or related issues on the forum, so atleast I took a couple of pictures in the process.

So far I haven`t identified the fault. There is no procedure for checking, not even a location in the workshopmanual - dissapointing really!

I checked the resistance of the sensor. it was arount 1K. (Was just under when checking from pin #2 to #3 and just above when reversing - cannot understand why...)
The sensor acts as expected. The resistance value changes, and resumes original value when a metal object is placed on the sensor tip. The same thing happens when the metal object is removed...

Question:

Has anyone experienced the same issue?