Sorry Mowat i was a little.
I have been having a little niggly problem. It stated last year with the very common problem of the revs dropping and the car dies. I thought we had got to the root of the problem. I had had the Hall sensor changed, and the camshaft/crankshaft sensor (the one behing the oil filter).
Since about xmas, i have had the odd dip in revs but that was as far as it went. This problem seemed to go about the end of jan when i started to get my fuel from sainsbury's instead of shell, dont under stant that personally.
Then at the weekend i was off down to London, car was running fine, well that was untill i got to the m6 toll. The revs started to go eratic, but it only lasted about hlf mile. it carried on fine untill the end of the m40 when it started to do it worse.
On the way back, topped the car up and crossed my fingers. 200 miles later the car was running well. Think i spoke to soon, back came the problem. I was thinking it may have been somthing in the tank getting burnt off, but it seemed to last too long, although was at the same petrol point (just over quarter of a tank).
Any how, ran the car on vag com sunday night and it said i had an intermittent fault on the engine speed sensor. (00513)
Is this a different sensor to the camshaft/crankshaft one?