hey all, my si has days where it runs perfectly smooth and is quite nippy, but most days it kangaroo jumps when i change the gears, sometimes stalls when im away to drive it even though i accelarate like normal, its as if it doesnt get enough fuel or something, its quite slow and sluggish when its in this mood and i dont get as much miles to my fuel compared to when i first got it (60 miles to a tenner compared to 75). the haynes manual says it could be an engine management system fault, if it is what do i need to do? or is it something else?

all opinions needed please

cheers

Try new plugs, leeds, air, oil, fuel filter change.

Fixed mine.

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I like boost! Formerly cookie456_the2nd

have done the leads, plugs n filter, just not the fuel n oil, which s gonna be next

id go for a fuel filter.....as even if it needed an oil change it shouldnt do that....with regards to possible engine managment fault.....try resetting your Ecu...disconnect batt leads for a few mins and then reconnect....if it still does it you may have a sensor in trouble....


Jam

koolio shall try, keep coming with solutions though!