1.8 SE MOT emissions failure

[Khare]

Thing is it could be the lambda probe, but then again it might not be. So if you replace it then that's the most expensive fix wasted. I could be as cheap and simple as air filter renewal or throttle body clean.

[devolute]

It recently had a full service, so all the air filters should have been replaced.

[Wayne]

It recently had a full service, so all the air filters should have been replaced.

I would still check.

[boneybradley]

try the lamda as the reading looks too high (a new bosch universal one is under £50) and also get a temp sensor (£6 well spent)..

oh and all mk3's are vag-com ready (obd1 if pre 95 and obd2 with "full reading" from mid 95... all e.u sold cars had obd2 from 1995 when euro2 emissions came in to force  )

[gtigolfthree]

Or mabye the engine is fcucked how many miles has it done and does it use (burn) oil?

[devolute]

It's done about 85k miles. The engine doesn't seem to go through a noticeable amount of oil and for what it's worth, it sounds 'normal' (My pal had a 1.8 Driver - same engine, same sound).

[AudiA8Quattro]

Replacing the probe is the cheaper fix, otherwise it will be a new cat.

[Guy]

At the risk of sounding immensely stupid here.. I once had a calibra (cue flaming) and that failed on emmissions. Turned out to be the O2 sensor..
a) is that the sensor everyone is on about
b) does a mk3 even have one of these, I would guess it does in some guise
3) If it does then is it worth considering as it was a very quick and cheap fix

[boneybradley]

At the risk of sounding immensely stupid here.. I once had a calibra (cue flaming) and that failed on emmissions. Turned out to be the O2 sensor..
a) is that the sensor everyone is on about
b) does a mk3 even have one of these, I would guess it does in some guise
3) If it does then is it worth considering as it was a very quick and cheap fix

yep same sensor....and it's bolted to the front pipe before the cat