Just dropped the car off yesterday for the 32000km oil change, and coincidently the CEL light came on sunday as I was leaving a friends several hours after arriving there earlier in the morning. The shop here said it was a cylinder # 1 misfire, the spark plug had been arcing, so they were going to replace the plug and then change the coil too. I have a rental right now (pos base Sentra) but anyway, they had to order the coil in. Is there anything I should be worried about? I only drove the car for a max 20 minutes in town, and was definately flogging it as I could tell it was not operating correctly and did not want to damage anything. Opinions? Thanks.