[NGK]

Hi All

I'm new to this forum and am seeking some advice.  I have a 2012 i30 and have recently noticed that every time I am stationery at traffic lights the car starts to slightly jilt.  It seems to drop a rev or 2 and this can happen up to 7 times.  This is also happening when the air-conditioning is on and at times the heater.  I have taken it to a number of mechanics and despite replacing the injector coils, spark plugs and cleaned throttle body, after a day or two, the car starts jilting again.  The mechanic believes it is ignition related but is also at a loss. 

Is anybody else experiencing the same issues and if so, have you found a resolution?

Thanks

[cruiserfied]

Whens the last time you had the fuel filter replaced?

[Aye30]

When was the last time the spark plug leads were replaced?

[tw2005]

When was the last time the spark plug leads were replaced?

won't these likely be coil on plug type?

[nzenigma]

purge valve = evap.

1. rough idle

and/or

2. hard start after fuel tank fill .

[NGK]

Sorry for late reply
Had coil changed and spark plugs changed

[Dazzler]

Sorry for late reply
Had coil changed and spark plugs changed

A 2nd set of plugs? So you are saying it is fixed properly now?

[nzenigma]

 

Obviously, the fault is not troubling NGK too much.

Or, she is working though the 200 suggestions from her 2000 facebook friends.