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  • Fox 5.0 Mustang Tech

i'm rich

  • Thread starter Thread starter bcd
  • Start date Start date Aug 24, 2005
B

bcd

New Member
Jun 23, 2005
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arab al
Aug 24, 2005
#1
  • Aug 24, 2005
  • #1
what would cause my car to run rich? really rich. i have a 94 fuel rail with the regulator on it. i have 255lph fuel pump 70mm 95 model mass air gt40 upper and lower. any ideas
 
S

ss93cobra

Founding Member
Apr 10, 2002
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Wilmington NC
Aug 24, 2005
#2
  • Aug 24, 2005
  • #2
What's your regulator set to?
 
B

bcd

New Member
Jun 23, 2005
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arab al
Aug 24, 2005
#3
  • Aug 24, 2005
  • #3
its not adjustable its the factory one
 
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ss93cobra

Founding Member
Apr 10, 2002
1,422
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Wilmington NC
Aug 24, 2005
#4
  • Aug 24, 2005
  • #4
Alright, have you tried checking to see what the fuel pressure is at? I'd start there and then run a self test on it. It could be that the a.c.t. is bad, the egr system, an o2 sensor, etc.
 
B

bcd

New Member
Jun 23, 2005
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arab al
Aug 24, 2005
#5
  • Aug 24, 2005
  • #5
Havent checked the fuel pressure yet planning on doing it this weekend. i removed the egr system i did plug and egr in and sit it in there to see if it helped. i probably need o2 sensors. advanced autoparts tried to pull the codes but kept getting an error. does that narrow it down any
 
J

Jeff7477

Founding Member
Jul 2, 2001
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Lincoln, Nebraska USA
Aug 24, 2005
#6
  • Aug 24, 2005
  • #6
You say you probably need o2 sensors, are you saying you don't have any or just need new ones?
 
S

ss93cobra

Founding Member
Apr 10, 2002
1,422
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Wilmington NC
Aug 24, 2005
#7
  • Aug 24, 2005
  • #7
Getting the fuel pressure info and getting it tested will help us solve your issues
 
B

bcd

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Jun 23, 2005
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arab al
Aug 24, 2005
#8
  • Aug 24, 2005
  • #8
I did a four cylinder conversion and i robbed the motor spindles brakes rearend o2's and lots of other stuff off of a 94. so i dont know how long the o2's have been in there i just wanted them to help me get the car running.
Jeff7477 said:
You say you probably need o2 sensors, are you saying you don't have any or just need new ones?
Click to expand...
 
B

bcd

New Member
Jun 23, 2005
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arab al
Aug 24, 2005
#9
  • Aug 24, 2005
  • #9
what range should the fuel pressure be in. when i opened up the plug gap to 55 it helped alot. the car starts missing at a cruise and thats what i am really trying to solve but the only problem i can find is the car is running rich. under heavy throttle its not as much of a problem. i may try to get my hands on a pressure tester today
 

fox racer

Member
Jun 22, 2004
577
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16
Staten Island, NYC
Aug 24, 2005
#10
  • Aug 24, 2005
  • #10
wats the advantage to 94 fuel rails? are they bigger than fox fuel rails?
 
B

bcd

New Member
Jun 23, 2005
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arab al
Aug 25, 2005
#11
  • Aug 25, 2005
  • #11
they are the only ones i had at the time
fox racer said:
wats the advantage to 94 fuel rails? are they bigger than fox fuel rails?
Click to expand...
 
B

bcd

New Member
Jun 23, 2005
274
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arab al
Aug 25, 2005
#12
  • Aug 25, 2005
  • #12
what fuel pressure should i be running?
 
B

bcd

New Member
Jun 23, 2005
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arab al
Aug 26, 2005
#13
  • Aug 26, 2005
  • #13
checked the pressure last night. its turning 50 psi @ idle with the vacuum unplugged
 
P

Polter83

New Member
Jul 27, 2004
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Aug 26, 2005
#14
  • Aug 26, 2005
  • #14
too high..
 
B

bcd

New Member
Jun 23, 2005
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arab al
Aug 26, 2005
#15
  • Aug 26, 2005
  • #15
i always wondered what it felt like to be rich
 
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