Throws all the compression out cause the engine looses correct firing order,my BMW did the same but it had a "limp home" mode had the power of a scooter
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Get the car scanned to isolate the problem otherwise you will be chasing your tail and spending $$$.
My same car (Audi) crapped the MAF sensor ,didn't code correctly so cleaned it,got 2 months and it went
replaced it and sold the car still going with 200KMs on it ...very strong little engines its just the all the sh#t that hangs off them go's wrong
.