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Unread 06-17-2009, 03:49 PM   #1
scbasspro
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1991 YJ Wrangler 
 
Join Date: Jan 2009
Location: Chapin, sc
Posts: 74
Fuel/air mixture adjustment on fuel injection

I am familiar with fuel/air mixture on a carb. engine, not fuel injection. How is the fuel/air mixture adjusted in fuel injection engines? 91 4.0 Wrangler

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Unread 06-17-2009, 03:53 PM   #2
bmgadg
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1992 YJ Wrangler 
 
Join Date: Mar 2008
Location: Mississippi
Posts: 457
Automatically with input from sensors I believe.
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Unread 06-17-2009, 03:53 PM   #3
Fernando
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1987 YJ Wrangler 
 
Join Date: Jul 2005
Location: San Josť, Costa Rica
Posts: 1,303
You can't adjust them, everything works based on the input from sensors and factory mapping, you would need a standalone engine management system or a piggyback computer to adjust the fuel mixture or the timing...
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