car runs unstable at icle specially when hot cyl nu 5 an6 do not run ok and 4 also in smoth running in scan number over 3.5 and the adap over 10. found spark plug cyl 1,2,3 slighly black and cyl 4,5,6 closer to white, there is no vacuum leak, could it be the v...

FIX posted 4/20/2009

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