lamba probe(oxygen sensor)

[watto83]

had it replaced at seat today because of engine management light coming on, but got it home and now the light has come back on after been removed? aaarrgghh!!! what does everybody think it could be? 3 faults came up which were 1.lamba probe failure and the other 2 were fuel mixture related. i got an x 2001 leon cupra turbo? anyone got any ideas?

 

[LeedsLeon]

MAF sensor possibly? Any other symptoms? Rough idle for example. I'd say MAF, but also give the throttle body a clean too.

Anyone else have any ideas?

 

[andycupra]

erm... well there is the obvious link to dodgy fuel at the present time...

 

[LeedsLeon]

surely the garage will have been aware of that though and done a full tank purge?

 

[cordobabrendy]

Did it come about from driving through a bit of water/deep puddle?

 

[Mitchy]

VW engines are not affected by this dodgy fuel business so i read

 

[m0rk]

I've read that in a couple of places too - but I bet the car will still run crap

 

[DPJ]

I've read that in a couple of places too - but I bet the car will still run crap

Yes, a nice coating of silicon would hamper the probe from doing its job a little.........

 

[chubbs]

VW engines are not affected by this dodgy fuel business so i read

sorry to say they are!!

 

[dan__smith]

Shell V-Power all the way

Cars not louder? When the Lambada goes, generally its a good idea for the cat converter to be changed as they work together.

 

[Tom B]

Only if you continue driving it with the light on! Thats what the lambda's there for.

 

[watto83]

when the turbo comes in it seems to loose a bit of pressure and hiss quite alot and im also gettin quite abit of turbo whistle? could i have a dodgy dump valve?

 

[dan__smith]

Either that or a hose has split...
Have you still got the original DV in? Because there renowned for dying!

 

[WeeJase]

when the turbo comes in it seems to loose a bit of pressure and hiss quite alot and im also gettin quite abit of turbo whistle? could i have a dodgy dump valve?

sounds similar to what my vrs was doing a couple of weeks back.
turned out that the rubo was loose.3 reatining bolts were so loose i could turn them by hand.car ran"ok" but there was loss of boost and it sounded awful

 

[watto83]

car aint making no wierd noises really maybe dodgy dump valve or actuator