Question about 1992 Buick LeSabre

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92 Buick Le Sabre engine stumbling/hesitation

Car has been sitting for 3 years. changed plugs, wires, O2 sensor, oil, and filters. ran great for 1-2 days, then started cutting out after I tried using the cruise control. got codes 13 and 44 after i replaced the O2 sensor? checked the connection, cleaned the MAF sensor, no codes but still runs rough. any ideas?

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  • ferretjoe58 Apr 30, 2009

    checked coils, reading pretty close to spec, no spark. changed ign. module, no help. appears to have fuel pressure.

  • Anonymous Mar 24, 2014

    eng runs fine pulls good under part throt
    but under WOT eng pull good to apx 5000 rpm
    then it hits the rev limiter but you must lift
    off the throt to get it to upshift
    fresh tuneup,plugs,air filter,new O2 (b1,s1)
    cleaned the maf, any clues on where to next ?

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  • Master
  • 4,669 Answers

Have you checked fuel pressure? How about spark on all 6 cylinders? Maybe a coil?

Posted on Apr 29, 2009

  • Clint Smock
    Clint Smock Apr 30, 2009

    No spark on all cylinders or some do and some don't?

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