Hi,
I have a lumpy tickover and sometimes a bit of fluffing when accelarating.
I looked at the breather on the left hand side of the block and there is a bit of oil there. Would a crappy seal cause this ? I used the check engine light to check for sensor faults and there were none.
Where could I get a gasket for the breathere and how much are they ????

Cheers

 

Come on !
Any ideas ??????

 

I had the same problem with the lumpy idle, nothing showing up on diagnostics but dealer replaced the oxygen sensor and this seems to have fixed it.

 

Try the MAF sensor. I have bad idle before & took the sensor out & cleaned it with cotton buds & carb cleaner - very carefully.

This cured it perfectly. The sensor was very dirty but not showing up any error code!

Johny.

 

Was the lump idle intermittent or continous?.i have same prob and is in next week for service.Been to 2 dealers for same prob but no faults showed on diagnostics.did you have surging whilst accelerating under load? or am i just lucky in having 2 faults!

 

Jmca,

Do you know the location of the MAF sensor on a STI v4 ?

Cheers

 

Rossc,

Should be between the air filter & the turbo intake. I have a MY95 so the sensor is different to yours I think, but the position should generally be the same.

Regards

Johny