Just yesterday my I30N with just under 12k miles all of a sudden started spluttering and ran super rough with no engine light weirdly. Got it back home and done some diag myself and found that cylinder 3 is misfiring, swapped spark plugs and coils around and still coming from cylinder 3. Used a scan tool to check live data and disable cyl 3 injector and made no difference to the idle. Only fault stored is P030300 cyl 3 misfire.
So judging by that the injector may have gave up which is quite surprising considering the mileage, are injectors common to go? I know the hpfp is a common issue but idk about the injectors. Maybe the previous owner thrashed the car when they had it? I’ve always ran it on momentum 99, I usually fill up with about 10-15 miles range left if that would make a difference? Filled up Wednesday and misfired by Friday.
Still under manufactures warranty so hopefully will be sorted through them.
So judging by that the injector may have gave up which is quite surprising considering the mileage, are injectors common to go? I know the hpfp is a common issue but idk about the injectors. Maybe the previous owner thrashed the car when they had it? I’ve always ran it on momentum 99, I usually fill up with about 10-15 miles range left if that would make a difference? Filled up Wednesday and misfired by Friday.
Still under manufactures warranty so hopefully will be sorted through them.
