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Twitching/Hesitating car Passat Variant 1.8T 2002

My car is kinda twitching sometimes, Passat 1.8T VAR 2002, I suspect mass air filter, nox sensor or camshaft sensor

Hey Scotty! My car is kinda twitching sometimes, Passat 1.8T VAR 2002, I suspect mass air filter, nox sensor or the camshaft sensor. Which of these do you think it could be? Got engine light and codes for misfiring cylinders/nox sensor and camshaft sensor.

But I want to know what is the component that makes the car go like this? I've swapped ignition coils and spark plugs.

rather than guess, have a guy like me hook up his dealer level scanner and analyze live and mode 6 data, guessing is foolhardy on a VW

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