jfxd

Can anyone point me to the location of the Camshaft Positioning Sensors on the 30v? I dont have my Bentley yet.. Just had the timing belt replaced by a shop and the engine threw the following codes right after I picked up the car:

VAG-COM Version: Beta 308.1

Control Module Part Number: 4D0 907 551 AH
Component and/or Version: 2.8L V6/5V MOTR HS D02
Software Coding: 06201
Work Shop Code: WSC 40821
2 Faults Found:
17930 - Camshaft Adjustment: Bank 2: Malfunction
P1522 - 35-00 - -
17927 - Camshaft Adjustment: Bank 1: Malfunction
P1519 - 35-00 - -


They had just closed, so I drove home, pulled the codes, cleared them, and went out for another short drive, and the CEL came on again a few minutes later. Same exact DTCs.

The only reference to this I could find in the archives was fixed by reconnecting the CPS, but I haven't been able to find a schematic showing where it is.

Otherwise, I'll take it back to them tomorrow morning.

Graci

Typist Formerly Known as (skene)

If they did not do the TB install correctly and the cams do not line up properly it will throw that code.

skabaru

did they plug teh sensors back in properly?

kenny (dremel)

You try looking there? Should be one for each camshaft.

skabaru

well, likely one on the back and one on the front on the v6...

s4master1

your cam timing is off
where are you located?

jfxd

There's two sensor plugs at the top of each valve cover, right above the TB covers, on each bank of the engine - I was thinking that those are probably the CPS but they did seem to be seated securely.

I don't even know why you'd unplug those for a TB change. First time around, I didn't unplug them.

They did use some kind of engine cleaner/degreaser - I was wondering whether that may have had something to do with it.

All in all they seemed quite proficient. I brought it to them because I was getting a ticking sound so I figured I botched something during my own TB replacement - and indeed, the water pump gasket was slowly leaking coolant on to the idler roller and dried coolant was starting to collect in the bearings.

So I can't imagine they did anything stupid like mess up the timing - I don't notice any difference in the engine response - but at the same time I don't really have any explanation myself.

jfxd

Not that I don't believe you, but what are you basing that statement on? Granted, the DTC descriptions are vague, but I wasn't leaping to that conclusion about them. Please explain..

skabaru

that either they are both unplugged and/or malfunctioning, or your timing is off.

kenny (dremel)

can't remember why I unplugged mine. those two plugs should be the CPS.