Hi Thanks for that. Was wondering if it could be coil pack. Can't be spark plugs as only recently had service at 123k. thought it may be HT leads as had similar problem with a KA I had before. Was worried it may be engine problem. Could it maybe be something to do with fuel injectors? I think the CAT is buggered anyway as you can hear a tinkering sound from the exhaust. I think it fell apart a while ago and this trip may well have finished it off.

Thanks