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Audi A6 3.0 V6 ASN 2002 - Non start, fault code 16775 Camshaft sensor #

Posted by Dave Stock on August 2, 2010, 2:47 pm

Year of Manufacture *: 02
Engine Size and Code *: 3.0 V6 ASN
( Optional ) Scanner Used: VCDS
( Optional) Fault Codes: 16775 - 004

Any help with this one will be appreciated..

The vehicle broke down on a journey and hasn't started since. There is a fault code present..
16775 - 004 Camshaft Sensor. Implausible signal..P0391 - 004 No signal/communication
Customer has a VAG code reader and got the same code and changed cam sensor no 4. The code re-appears almost immediately after being cleared. When scoped the signal from all cam sensors looks Ok There is a good spark and injector duration is normal.

Will this fault code prevent a start..?
Does the "004" after the fault code number mean sensor No 4.

many thanks

Dave Stock

Re: Audi A6 WAUZZZ4B92N

Posted by Alan Kane <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5535' width='330' height='300' border=0 style='border:none;'> on August 2, 2010, 5:55 pm, in reply to "Audi A6 WAUZZZ4B92N"
Alan Kane - Administrator

Camshaft sensor "B" Circuit Range/Performance, Bank 2. The ECU is seeing a signal but it is not happy with it so either the signal is bad or the ref to the other signals is out.
Scope the signals again and scope versus the crank. Possibly a timing error on that cam.

Re: Audi A6 WAUZZZ4B92N

Posted by Mark carter <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1428' width='330' height='300' border=0 style='border:none;'> on August 2, 2010, 6:06 pm, in reply to "Audi A6 WAUZZZ4B92N"

Hi Dave, I've got Camshaft Position Sensor B Circuit Range/Performance (Bank 2) for fault code P0391 HTH

Regards mark

PS. For what it's worth I second what Alan has said.(He posted when I was typing)

Modern cars, Its all wizardry and witchcraft

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