Exhaust pressure sensor related to exhaust flap position censor?

misoless

New member
Joined
Apr 4, 2010
Location
Texas
TDI
none
In Feb., my 2010 Jetta TDI had MIL on, and dealer found "fault in exhaust flap position sensor circuit." Replaced exhaust flap assembly as part of a recall or warranty extension (mileage at 78k). Now I have an error code of P0470, which from reading here sounds like it is an exhaust pressure sensor. I know little about any of this but, gee, these sound like similar things.
My question: are they related? Any way I can get the dealer to do this one at no charge as well? Did changing out the first one without changing out the other make the second one go bad?
Thanks for any input.
 

meerschm

Top Post Dawg
Joined
Apr 18, 2009
Location
Fairfax county VA
TDI
2009 Jetta wagon DSG 08/08 205k buyback 1/8/18; replaced with 2017 Golf Wagon 4mo 1.8l CXBB
http://www.natef.org/NATEF/media/NATEFMedia/VW%20Files/2-0-TDI-SSP.pdf

see page 55 for the exhaust flap,

and page 56 for the flap in relation to the DPF (where pipes lead to the pressure sensor which is located a bit higher so you can get to it in the engine compartment, and it is a little farther from the intense heat of the DPF.

you can always ask, but probably no.

both parts are in the exhaust system but are used for different things.

both can fail, which will set the MIL, for different reasons
 
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