Question about 1991 Volkswagen Jetta

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Have a 1991 jetta disel. just got it. smokes a lot. how do you adjust to burn cleaner. previous owner tured up fuel to get smoke. i want better mileage.

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Well if i were you iwouldnt touch the mech fuel pump, u can turn down the fuel but if you dont know what ur doing its a big job... i would turn up the boost about 1.5 to 2 psi its easy and will burn off that extra fuel. should give you a little more power. or go to TDICLUB the will have step by step instructions with pics

Posted on Dec 24, 2010

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