Hi guys,   had a misfire the other day, VDC light, slip light and EML came on. Misfire did go away after a few minutes and the car ran fine for the rest of my journey. Got home and checked the code -  P0350  Ignition coil primary/ Secondary circuit malfunction. Thinking if it was a coil pack the code would highlight which cylinder was the problem so I assumed it would be an earth fault. Went round with the multimeter and checked the resistance at all earth points an