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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

running rich

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Old Mar 30, 2005 | 05:12 PM
  #1  
wyoloadtoad's Avatar
wyoloadtoad
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running rich

My fuel injected 302 is running rich. I don't know much about fuel injection but I know in carbs you can adjust the fuel flow and idel speed. Is there any thing I can do for it?
 
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Old Mar 30, 2005 | 05:45 PM
  #2  
EPNCSU2006's Avatar
EPNCSU2006
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From: Concord, NC
Pull codes and see if the computer detects any faults. O2 sensors can fail, causing a rich condition, as well as the fuel pressure regulator. The best place to start is with the codes. Fuel injection parts are expensive, so it is best to narrow it down to the exact problem before buying random parts hoping one will fix the problem.
 
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Old Apr 2, 2005 | 10:37 PM
  #3  
Danos-f150's Avatar
Danos-f150
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From: Nelson B.C
Check the vaccum lines going to the map sensor, mine was melted on the back of the head, had a heck of a time finding out why it ran so rich. Check the simple CHEAP things first
 
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Old Apr 3, 2005 | 07:58 PM
  #4  
90F1505.0L's Avatar
90F1505.0L
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From: Lexington Park, MD
you might also try to clean your EGR Valve and install a restrictor plate that can be made from a small piece of stainless steel.
 
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