HI ,
Today,i had the experience of twice misfire from 1st to 2nd gear during cold engine which i did not experience before i had the plugs change over last week end.I am using the same NGK platinum brand.
The old plugs were changed at 29,000km and thought it was driving rough at times jerky and naturally had black tips .Though the new plugs are much smoother in revs and acceleration but its something new to me with twice misfire from 6000revs.It was alright once the engines warm up hitting past 6000 to 8000 revs.Its that consider normal or should i look into other areas again eg,making sure the coil or rubber housing that clicks and tighten onto the plugs.....
Will appreciate your input.
thanks tay