No not yet. I am so frustrated with this car that i need to get rid of it but nobody would buy it in this condition. I bought it for my wife but she won't drive it. The car is due a service in about 700 miles but it was last serviced nearly 2 years ago. However my mechanic does not feel that the filters or plugs are the reason behind this. I have had a carburettor and fuel injection specialist look at it for 2 days and run loads of tests. He replaced the distributor cap and i'm sure he would have checked the plugs while he was at it. What have you ruled out so far, or what have you tried to date?