[Brad]

Just purchased 2012 i30 200,000 km auto, just off idle on acceleration it as if it cuts back on a couple cylinders but soon as you give more acceleration it’s fine, definitely a bit more rattley when this happens, I did put some good second hand injectors in thinking it would fix the problem but has made no difference at all, any suggestions to try thank you

[Pnut]

Coils, plugs and wires could cause those issues

[sundiz]

Did you program those new injectors to ECU? Does this rattle happen always or randomly? I was just wondering if loose chain or faulty tensioner would fit to your description...

[sundiz]

Coils, plugs and wires could cause those issues

It is a diesel.

[Brad]

No I haven’t coded injectors in yet, I plan to get done this week, it rattles just after idle when accelerating, 90% off the time