Air filter change now problems

[Goldie 80]

Hi after a bit of advice I just changed my air filter on my Leon cupra 1.8t and now it starts but cuts out after 20 seconds. I can't see anything pulled off etc any ideas

Thanks

 

[Goldie 80]

Just an update i replaced old filter and problem still exits. Now car is running and driving but the warning light is now on any tips.. Also the air sound of the turbo seems louder I think I've broke my car please help!!

 

[Fireproofbob]

Just an update i replaced old filter and problem still exits. Now car is running and driving but the warning light is now on any tips.. Also the air sound of the turbo seems louder I think I've broke my car please help!!

What warning light?