problems

[samanco]

hey can anyone help me with a problem on my galant 2.0 sport 2001, i put diagnostic reader on car car and it told me to change o2 sensor 1 which i did with genuine mitsubishi part, but still have problem, car really hesitates and splutters under excelleration from low revs between 1000 and 2500 rpm and its driving me crazy:

[elnevio]

What reader did you use?

What sort of history/servicing has been carried out? E.g. air filter, plugs, etc.?

Oh, and !

[Spirit]

Welcome to CVR4, have deleted the other thread with the same question - please don't post duplicate threads in different forums, thanks

[samanco]

rac scanner just replaced plugs with iridium air filter could do with changing car has had pretty good history and covered 158000 mile