1999 Nissan Quest misfiring and dying

253,000 MILES • 6 CYL • FWD • AUTOMATIC
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REDDOG1300
  • MEMBER
  • 1 POST
when vehicle reaches operating temp, it starts missing badly and then dies. return to normal when temp is cold
Jan 2, 2010 at 7:11 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check and test the IACV-AAC valve

Engine misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
Jan 2, 2010 at 7:19 AM
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