Thread: 2006 grand prix loss of power at 40 miles an hr

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  1. #1 Re: 2006 grand prix loss of power at 40 miles an hr 
    GrandPrix Junkie
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    Bad O2 sensor, bad TPS, clean the MAF with approved MAF cleaner. Maybe even remove and clean it up. Any codes showing? Also, what type/brand plugs did you install?
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  2. #2 Re: 2006 grand prix loss of power at 40 miles an hr 
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    ac delco wires and plugs same brand that were in the car cleaned the Maf .Do you think may be bad 02 sensor have never changed them 120000 miles on car
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