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Discussing Need Help Burning Very RICH!!!! in the 5.0 Mustangs Forum. I have a 91 GT w/ an 8 psi blower 30lb injectors and a 255 ... 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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November 25th, 2006, 01:23 PM
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#1 |
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Newbie
Join Date: Nov 2006
Posts: 3
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Need Help Burning Very RICH!!!!
I have a 91 GT w/ an 8 psi blower 30lb injectors and a 255 fuel pump. My car burns so rich at times it diesand there is a strong fuel smell. I dont have a fuel pressure gauge but know its rich. It all started when I have a new tranny put in. As soon as I picked the car up the MAF sensor went out and I got a new one and it ran ok for a few days. Could my fuel pressure regulator be out? I am just lost and need help, Thanks
P.S. By the way I am getting about 120 miles to a tank!!! |
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November 25th, 2006, 02:51 PM
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#2 |
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MM Fanatic
Join Date: Aug 2006
Location: On my way to Baines's house!!
Posts: 3,267
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Well first of all a fuel pressure gauge is a must with any modded motor for sure with a s\c motor if you dont know what your pressure is it is just a guessing game. it could be a bunch of things. First I would put a gauge on that thing for piece of mind.
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Rotating The Earth 1320 Feet At A Time!! Today, I found out that when I masturbate at night while watching internet porn I cast a huge shadow on the curtain and the entire street is able to see it. 
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November 25th, 2006, 07:44 PM
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#3 |
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Enthusiast
Join Date: Oct 2006
Location: new england
Posts: 816
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check the o2 sensors
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85 svo. work in progress 
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November 29th, 2006, 10:36 PM
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#4 |
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Regular
Join Date: Aug 2006
Location: Tonopah,az
Posts: 86
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why the 02 sensor, can he just unplug them ???
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1986 stang ,Edelbrook intake, aluminum heads, E303 cam ,70 MM throttle body ,24lb injectors ,373 gears , 10:1 pistons set up,no cats , flowmaster mufflers , short shifter , 255 fuel pump , smog pump delete , A/C delete , Aluminum Radiator , MAF convertion |
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November 30th, 2006, 11:38 AM
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#5 |
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Newbie
Join Date: Nov 2006
Location: Chicago
Posts: 39
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What I'd like to know is how are you controlling the tune? FMU? PMS? Do you have a adjustable fuel pressure regulator on the car? You need a fuel pressure gauge.
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90 Mustang GT 97 Mustang Cobra |
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November 30th, 2006, 11:04 PM
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#6 |
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Regular
Join Date: Aug 2006
Location: Tonopah,az
Posts: 86
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fuel presure
yes i have a adjustable fuel reg and gauge
fuel is set at 42 idle (no vac line when set) 19 lb injectors for now (took the 24's out)
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1986 stang ,Edelbrook intake, aluminum heads, E303 cam ,70 MM throttle body ,24lb injectors ,373 gears , 10:1 pistons set up,no cats , flowmaster mufflers , short shifter , 255 fuel pump , smog pump delete , A/C delete , Aluminum Radiator , MAF convertion |
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November 30th, 2006, 11:05 PM
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#7 |
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Regular
Join Date: Aug 2006
Location: Tonopah,az
Posts: 86
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oh you mean giddyup91...right
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1986 stang ,Edelbrook intake, aluminum heads, E303 cam ,70 MM throttle body ,24lb injectors ,373 gears , 10:1 pistons set up,no cats , flowmaster mufflers , short shifter , 255 fuel pump , smog pump delete , A/C delete , Aluminum Radiator , MAF convertion |
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December 1st, 2006, 03:44 PM
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#8 | |
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Newbie
Join Date: Nov 2006
Location: Chicago
Posts: 39
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90 Mustang GT 97 Mustang Cobra |
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