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June 11, 2019 Service bulletin

Alternative diagnosis for lean fuel trim.

Volkswagen technical service bulletin TT 01 18 14 for 2013-2018 Volkswagen Jetta, 2013-2018 Volkswagen Passat and 2013-2018 Volkswagen Beetle and others.

Bulletin number
TT 01 18 14
Component
Equipment adaptive/mobility
Summary
Alternative diagnosis for lean fuel trim.

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