We took our 2002 Turbo VW Jetta to be checked due to the engine acting like it was about to die and we also heard a weird noise like a jet engine they replaced the air flow meter and said it was fine .. yet the check engine light was on still a week later we took it back in it just got worse and worse so they changed the air flow meter again then tried to say the engine issue was from a K & N air filter and my husbands speaker power supply.. we took all that out still the same issues so after 5 air flow meters nothing changed 4... read full review »