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Check for airleaks as already mentioned. Check your CCV as well while you're at it.
If you took a proper oem brand MAF then that should rule this part out. If yopu used a spurious one then it could still be the MAF. Other then that my money is on the O2 sensors.
 

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any quotes what can cause to run rich? and that might right as the oil smells petrool waay too much
Yeah O2 sensors when faulty cause this. So do airleaks etc.....Also if you take the plugs out you might be able to see if you have injector issues. A good diag should be able to read the duty cycle on them so you can check if the signal is ok.
 
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