Hi all My neighbours petrol Vectra has had a bad misfire on damp mornings for some time - frequently starts on two cylinders will pick up to three and then go on all four - however before getting to all four it was taking a minute or so and pumping out some very petrol smelling fumes.
The misfire was completely cured by fitting new plugs and leads - now he's looking to sell the car and I'm interested - the question is though - will the flow of unburnt petrol through the cat have ruined it ?
Thanks
GT