1994 Nissan Pathfinder CUTS OUT AT 65

Tiny
SWEETTOOTH1970
  • MEMBER
  • 1994 NISSAN PATHFINDER
  • 6 CYL
  • 4WD
  • MANUAL
  • 10,000 MILES
I have a 94 pathfinder and it cuts out and shuts off at 65mph. It has a slight smoke and smell coming from exhaust. Any ideas?
Wednesday, July 29th, 2009 AT 8:06 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
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Wednesday, July 29th, 2009 AT 8:10 PM

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