Dean2015

any advice on helping me sort out emissions for mot.. Failed on high co levels.. Mechanic says seems like it's over fueling!! Just wondered if any one had and advice on how to rectify problem!
Thanks dean

Dean2015

Forgot to say it's a 1999 Impreza sti

Iqy7861

Has it been de-catted Dean? Any mods etc?

Dean2015

Hi,not been de-catted, no mods totally standard except it's got a equal length manifold

jaygsi

iTrader: (46)

Any luck finding out problem?

Dirk Diggler 75

Try the lambda sensor .....

Dean2015

Not yet mate going to change lambda sensor .taken old one off I gave it a little shake and something inside is rattling ,so I presume it may be broken so will replace and take it back for retest ......fingers crossed

JohnD

iTrader: (5)

If it's overfuelling then the lambda reading must show this. If the lambda reading is ok it'll be the cat not doing it's job.

JohnD

hooley scoob

had this problem last year. took it for a good hard drive to get cat hot then back to garage and it sailed through