I have a 2000v astra 8v LS automatic . The problem is I drove it in my garage last night and now it will not start, although it turns over well. There is no smell of petrol after turning the car over and on examination no spark at the plugs. It appears to be immobilised.I had the same problem two years after I got the car and on that occasion, after letting it stand for two hours, it relented and started. I took it to vauxhall and they could find no fault registered on the ECU but nevertheless fitted a new ECU under warranty. Has anyone had the same problem and solved it?