So the crank positioning sincer can have it so it won't spark

 

I have a 98 Audi A4 quatro. It's missing!!! Was running fine with air box out. Put it all back in n notice plugs were loose n tightend them down n started it n its missing. All injectors working all coils firing head gasket good all compression good intake gasket good changed icm changed temp sensor started it ran good shut the hood check engine flashing started missing again WTF is going on!!!!!

 

plugs or plug wires?

 

I have exact same problem. What did you do to fix it?