i have a 98 a4 1.8 quattro automatic...i was driving around on tuesday and out of nowhere without a warning, my car started to shake mildly, i got home and did some tests, the first time i heard the evap purge valve ticking so i disconnected the sensor clip off n clipped it back on..the problem went away for a couple minutes, enogh to get to autozone and check the codes...it threw out a misfire in cylinder 2, failed evap purge regulator, and a open or closed circuit somewhere....

i switched out the coil pack, the spark plugs, the purge valve and still the problem resides...out of cylinder 2 i am not gettin any spark at all and i checked other cykinders and they are all fine..gas and spark on all 3...im running out of ideas here can someone give me a lead any help is appreciated thanx fellas...