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1993 Nissian Sentra SG auto choke

Tiny
MIKE BRIDGE
  • MEMBER
  • 1993 NISSAN SENTRA
  • 4 CYL
  • FWD
  • MANUAL
1993 Nissian Sentra SG auto choke is stuck on. Fuel use is excessinely high. If car stalls it is hard to restart.
Saturday, July 16th, 2011 AT 12:06 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the fuel pressure with a gauge to rule out the fuel pressure regulator, clogged return line and fuel pump
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Sunday, October 9th, 2011 AT 8:12 AM
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, October 9th, 2011 AT 8:13 AM

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