what causes jetta four 1,6engine to loose power during acceleratio and back fire when it reaches 1,5rev/min.?

Asked by Thomas Dec 27, 2014 at 05:55 AM about the Volkswagen Jetta

Question type: Maintenance & Repair

it causes spark plugs to have a black thin layer of carbon as if its over flooding and a black auxhaust gas comes out. it idles good problem starts when accelerating. i fitted a new petrol pump,timing belt and spark plugs but it is still doing the same thing.

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Deathjam4 answered 9 years ago

well first place to start is what is the exact year and engine so i know where to start please and thanks.

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what causes jetta four 1,6engine to loose power during acceleratio and back fire when it reaches 1,5rev/min.?

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what causes jetta four 1,6engine to loose power during acceleratio and back fire when it reaches 1,5rev/min.?

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