Please help me. hi fellas I have had recurring intermitent fault with my 2002 2.3 petrol. Every now and again it misfires, all power cuts for a second you get a jolt like you have gone over a speed bump then it goes back to normal. Does this under all sorts of conditions so no common denominator. It used to happen once a week ish but now its happening more so the wife has demanded a new car, she has a deal worked out for a zafira chopping the galaxy in against it i have till next saturday to sort it or the galaxy goes. I have had a new set of leads and coil pack, cam sensor, crank sensor, fuel filters and a full service done. Nothing comes up on any diagnostic and i have had it to two places to run it on different diagnostic machines. I dont know what else it could be, mechanic is a guy i know well and he is at a loss as to what it is as well. He cant reproduce the fault in the workshop and has changed all the parts he thinks would cause it. The only option he can suggest is it may be ecu related and have that sent off and tested but he is still sceptical Does any one have any other ideas and is it worth having the ecu checked?? Please help before i end up with a vauxhall parked on the drive and i am 4k lighter in the pocket Cheers in advance