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Rough idle running rich wont start up unless primed

Tiny
808BIGMIKE
  • MEMBER
  • 1997 MAZDA B2300
  • 2.3L
  • 4 CYL
  • 2WD
  • MANUAL
  • 180,000 MILES
Everytime I start my truck I have to spray starting fluid into the throttle body before starting up my truck if I dont then my truck will not start. After engine has started up engine runs rough and seems to run really rich fumes kinda burns my eyes also theres black smoke coming out of the exaust
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Sunday, December 8th, 2013 AT 9:51 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
I need you to first check the fuel pump pressure when it is cold. See if it is within the manufacturer's specs. Many times the fuel pump is what I call a Lazy pump. In other words, it doesn't have the pressure to start the car, but will keep it running after it starts. However, the fact that you see black smoke from it indicates it is getting too much fuel. You may have a bad fuel pressure regulator too. Check that and let me know what you find.
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Sunday, December 8th, 2013 AT 11:33 AM

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