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1999 Oldsmobile Silhouette Question: how do i run car through drive cycle in order to pass emissions test ?

 

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monkey1999, 3.4L V6, Gilbert, AZ, November 20, 2012, 13:06
 Rookie

Not supported for : Heated Cat, Air system, air conditioner
nor ready- heated 02

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  • Answer #1

    November 21, 2012, 08:06
     Master

    Not supported means that component doesn't apply to your vehicle. Heated O2- Try driving at steady speed (cruise control) on highway for 10 miles or so , and then coast downs (not braking) as much as safe in driving conditions. Each manufacturer has their own rec. , but that routine has worked pretty well for me on most. BE PATIENT , all cars react differently and individual driving styles can have a big effect on setting the readiness codes.

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    monkey1999, November 21, 2012, 09:09
     Rookie

    Thank you ziptie for your help. Will use your advice.

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    ziptie12, November 21, 2012, 17:43
     Master

    Your welcome and appreciate the response.

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