[s-cars] Lambda replacement?

[Kent McLean]

Theuns Pelser wrote:
> Ok I have been warned that this is not the best place to post 
> my A3 Audi 18T(AGU) Q's.... 

Stick around.  The U.S. is getting the A3, so this list may
begin to see more questions regarding it.

> I feel I need to replace the Lambda on my A3 since it has covered 160k km.
> (99419miles) and it doesn't look like it has ever been replaced.
>  
> So can I do this myself without Vag-Com or remapping? and what type should 
> I get? or should I get the OEM?

Is the Lambda the same as the oxygen (O2) sensor?  If so,
it should be fairly easy to replace.  You might need an O2
sensor socket to remove it.  A replacement sensor from Audi
will be expensive.  You can substitute a generic Bosch sensor
and splice it into the existing wiring. In the US, "we"
recommend one for a Ford.  They are all basically the same
except for the length of the wires and the connector on the
end, although now there are 3-wire, 4-wire, and wide-band.
Check with your local auto parts store for a recommendation.

This link will give you a bit more detail:
<http://www.audifans.com/twiki/bin/view/Audi/OxygenSensor>

Also, search the Audifans web site for "oxygen sensor".

--
Kent McLean
'94 100 S Avant, "Moody"
'89 200 TQ, "Bad Puppy" up in smoke
'56 Austin-Healey 100 BN2, for sale