Hey guys,

i don't know much about an engine so my question is how bad is it if a cam is off? I had my timing belt and water pump replaced but it was not by audi and after the guy was done the check engine light was on. i took it to audi for an oil change and they said that it might be a cam sensor or one of the cams might be off. what kind of $ am i looking at to fix that kind of problem?

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sd