What causes a Audi A4 to e too lean

Asked by Travis Jan 07, 2021 at 05:11 PM about the Audi A4

Question type: Maintenance & Repair

Will being too lean stop my vehicle from
running

1 Answer
3,775

Randy answered 4 years ago

no. I have a similar vehicle ( VW jetta 1.8t). It runs just fine as long as I change the purge valve and keep the air filter clean on the primary side. the ecm relay has to kick on the SA relay though to get the secondary to function properly

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