1999 s 80 t6 power flattens at 4500-5000 rpm

Discussion in 'Volvo S80' started by ADB, Aug 25, 2011.

  1. ADB


    Aug 25, 2011
    Likes Received:
    Hi my 99 t6 accelerates very fast off the line and up to 4500-5000rpm, then it seems to flatten out is that normal? I thought the second turbo is supposed to work at higher rpm. I have new plugs and all cylinders are firing fine with no faulty codes.
    Any suggestions?
    ADB, Aug 25, 2011
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