This is 1989 Suzuki sidekick 2 door 5 speed 4x4
What is required if I put a vw turbo diesel in my Suzuki to get smog legal. on 1990 Suzuki Sidekick
In Texas it would not be legal to sticker with modifications, need to check your state laws first.
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You'd have to make that turbo diesel run as clean as the Suzuki originally did, and have all of the pollution controls intact. (EGR, Catalyst, Evap, PCV etc.)