Original post https://www.copenworld.com/vb3/showthread.php?t=1090 My engine keep cutting out / hiccuping randomly, it was a Spark Coil issue. The Daihatsu Dealer could not trace it on their diagnostics kit, in the end a friend said change the spark coils. The Copen has 4 of them, and they cost in excess of £150 each new - luckily I used http://www.1stchoice.co.uk and a very good supplier in Cambridgeshire, FenLand Breakers, (contact Gary on 01354 651949) supplied me with 4 used ones for £67 inc delivery. They work No more cut outs or hiccups Car perfect. Fenland have 4 Copens if you need spares. A friend received a Copen Turbo off them and is very happy as well. So an engine cut out / hiccup that did not show any error codes on the Daihatsu Diagnostic kit was caused by a faulty spark coil. When the fault first occurred my car had 70,000 miles on it and it is on a 54 plate. Daihatsu UK had never heard of the problem before!