Cbklivevil

So to further on the issues with the car. Changed Coil Pack Changed Spark Plugs (gaps exact) Changed EGR Valve Cleaned Throttle Body Checked Wiring / replaced Coil Lead Changed Lambda Sensor When at a set speed it's fine but as soon as I put my pedal down it shudders and the Engine Management light starts flashing, once I take my pedal off it stops flashing but stays on. Normally worse on lower gears. Still same code - P03030 Cylinder Misfire #3 Any ideas where to go from here?

Hi, we checked them from the existing ones and looked the same although if all plugs weren't in the correct position wouldn't that put out all Cylinders and not just 3?

Hi, About a month ago I replaced my coil pack on my Zafira B 2007, solved issues but now these issues have arrived again. Changed spark plugs over but still issues. Misfiring, shuddering. If needed I have all the freeze frame info to help.