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Nissan Maxima A33

Tiny
KENJ
  • MEMBER
  • 2000 NISSAN MAXIMA
  • 6 CYL
  • FWD
  • AUTOMATIC
The motor in this car has strated to surge and die. The car stalls frequently in drive. It is blowing black smoke with a very strong fuel odour. Is the problem likely to be O2 sensors or catalytic converter. As a bit more bakckground the car was run for some months with a faulty coil
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Sunday, March 13th, 2011 AT 9:33 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Probable causes of an engine running rich are as follows:

1. Excessive fuel pressure can be cause by restricted fuel return line
2. Defective Oxygen Sensors.
3. Leaking injectors and fuel pressure regulator.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
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Sunday, March 13th, 2011 AT 9:35 PM

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