hi all i have a mk2 vr6 unsure of engine year, all i no is that it has a square box where the ht leads plug into (transformer), its been running fine for a wile but one day it cut out and wouldn't start or spark at all, so i relapsed the transformer and it ran fine again but the same has happend today and it wont spark again so befor i order a genuine vag item this time dose anyone no what els could be wrong?? is my vr6 engine a obd1 or 11 ow and it turns over fine, fuel pump primes and there is plenty of pressure