machman

only had the car a month.the only thing that showed up on diagnostic was rear 02 sensor as readings were eratic,which ive changed.was told could be a dodgy cat? always run on 98 octane was re mapped by previous owner.

hi all just purchased an 09 wrx sti hatch, having a few intermittent issues, been remapped by alan jeffry 370bhp. sometimes it idles fine the its lumpy and revs rise a bit before dropping back. also sometimes it will splutter on acceleration as if im in the wrong gear im finding the car a tad complicated at the moment,there is no cel light or anything showing , i believe its possibly a sensor as its not all the time. any advice gratefully appreciated