Hi Guys. Can anybody help me pls. I have a kadett 2.0 8v gsi boss. Drove last week car started making bbrrr bbrrr sound and switched off. Started it again went to 2000rpm switched off. Until eventually it didn't want to start anymore motor just swings. Took out the ecu and had it tested at auto ecu they said there is nothing wrong. Replaced the crank sensor & coil. Fuel is there but airflow meter is totally dead no movement at all and there is no spark either. Where else can I look or is there maybe a mobile mechanic that come have a look at it. Or should I just sell it as is or burn it out. I don't know anymore HELP!!!