Has anyone got any clues as to what can be causing this ??? The beast has been running ruff for ova six months changed usual suspects plugs leads cap rota also changed water temp sensor idle stabilizing valve and air flow meter which helped with idling prolem but its still using way to much petrol. It feels as though the engine is pulsing as the voltage increases could this be the dizze or hall sensor as heard these could be at fault ? Had it at local vw specialists they said has a fault with lambda probe to , had the car 8 year at present with not many faults luckily enough but this one has me stumped has anyone got any ideas :confused4: