runnig

hi i have just drove 200 mile on lpg ,when i ran out it changed to petrol ran on motorway ok untill first island off m/way then engine ran but ticked over lumpy but then cut out altogether and then was a bugger to start. eventually started but it has not run right since. i have disconected maf...

Please. I need help. The analog watch of my range rover 2005 is running and running and after i set up the time, it do not stop. how i can solve this problem thank you antonio