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Discussing Fuel Problems Burning Rich / Burning Lean in the 5.0 Mustangs Forum. I have a 89 LX that seems to not be burning fuel right. If I ... Modded Mustangs is the premier Ford Mustang Forum on the internet. We discuss all aspects of the Ford Mustang on the forum. Registered Users do not see the above ads. Please Register - It's Free! |
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March 15th, 2007, 08:33 PM
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#1 |
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Newbie
Join Date: Nov 2006
Posts: 32
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Fuel Problems Burning Rich / Burning Lean
I have a 89 LX that seems to not be burning fuel right. If I sit an idle and then pull the plugs I have 1 or 2 plugs that are chocolate brown and then then the rest of them are either white or a light grayish color. If I drive the car and then pull them they are all grey or white. Somethings not right but I dont know what. I also noticed that the vacum hose that comes off the vacum tree on the firewall that goes on the upper intake on the back if you pull that off the intake the hose has oil that drips out of it. This is a 302 with 24# injectors, 75mm TB, C&L MAF, and a Edelbrock 5.0 performer manifold and intake. I have tried setting my fuel at 35 and 40 and still does the same thing. Any help would be appreciated.
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March 16th, 2007, 03:05 PM
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#2 |
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I Post Entirely Way Too Much
1997 Mustang Cobra
1/8 - 8.89@86mph
Join Date: Jan 2006
Location: Colorado Springs
Posts: 6,554
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check you plugs, plug wires...you might also have crossed plug wires.
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March 16th, 2007, 03:06 PM
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#3 |
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I Post Entirely Way Too Much
1997 Mustang Cobra
1/8 - 8.89@86mph
Join Date: Jan 2006
Location: Colorado Springs
Posts: 6,554
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hope this helps.
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March 20th, 2007, 11:40 PM
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#4 |
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Regular
Join Date: Jul 2006
Location: Grand Rapids,MI-Ft.Hood,TX
Posts: 256
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Re: Fuel Problems Burning Rich / Burning Lean
Where your two browned plugs wet? if so get new plugs. Try cleaning your MAF sensor, carefully (i never have myself but had a similar problem and was told to do this with brake cleaner). When i thought i had a fuel pressure issue i was told 39lbs is the optimum to set the regulator at.
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March 21st, 2007, 05:11 PM
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#5 | |
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Enthusiast
Join Date: Oct 2006
Location: Augusta, GA
Posts: 906
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Re: Fuel Problems Burning Rich / Burning Lean
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March 21st, 2007, 10:46 PM
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#6 | ||
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I Post Entirely Way Too Much
1997 Mustang Cobra
1/8 - 8.89@86mph
Join Date: Jan 2006
Location: Colorado Springs
Posts: 6,554
|
Re: Fuel Problems Burning Rich / Burning Lean
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