Hey all, just a quick note to let you know that I've cured my long-standing problems with crap running of my Z22SE Zafira. I've tried CTS, EGR blanker, cleaned TB / plugs / everything else and it was still lacking power, missing, spluttering and generally crap. I removed the coil pack recently, stripped it down as far as it would go, cleaned all the contacts etc I could get to and put it all back together. I then noticed a substantial improvement in running but it was hit and miss. So, I bit the bullet and got a brand new coil pack off Ebay ( £60 + £10 post - bargain ), fitted and it BINGO ! All is good in the world again.