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I have a 2005 Suzuki Verona LS 2.5l V6. We bough it used from a dealership, it didn't have a check engine light on.... until we came home. :mad:

I'm getting three codes, from a reader my dad has:

P0171 - O2 sensor

P0404 - EGR

I am going to replace the two bank one sensors: I need to know where they are located/ if there are actually two to replace/ I believe they are downstream.

Concerning the P0404, what do i need to do to check that before I attempt to replace it; as it is rather expensive.

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