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  '79 to '93 -- The Fox Mustang & Capri
  fuel pressure or lack of

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Author Topic:   fuel pressure or lack of
fastbackRb
Journeyman

Posts: 79
From: Columbus,Ga.
Registered: May 2002

posted 05-06-2002 11:37 PM     Click Here to See the Profile for fastbackRb   Click Here to Email fastbackRb     Edit/Delete Message   Reply w/Quote
I am having problems gettingmore than 23lbs. feul pres. on an 86 svo. Have replaced the pump with a bbk 255 and still no more pressure. I have checked the lines no leaks crimps flats.I have tried anew stock regulater and an after market adjustable with no gain.( I bought the car and it had this problem, but has a rebuilt engine turbo 4)Any body got any ideas?????????

Rudy

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SteveLaRiviere
Administrator

Posts: 32655
From: Saco, Maine
Registered: May 99

posted 05-10-2002 09:28 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
Are you sure your gauge is accurate? Is the engine running lean?

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'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip

MCA Member # 47773

"Doubt is not a pleasant condition, but certainty is absurd."
- Voltaire

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fastbackRb
Journeyman

Posts: 79
From: Columbus,Ga.
Registered: May 2002

posted 05-10-2002 11:26 PM     Click Here to See the Profile for fastbackRb   Click Here to Email fastbackRb     Edit/Delete Message   Reply w/Quote
Steve just got it fixed tonight.Yes it was lean and would skip and sputter sitting still. You know it is always the real simple things that cause the most trouble.6 mouths 4 pumps and a new engine agitated the problem so bad we finally found the ground wire to the fuel pump was not good enough for anything more than a stock type pump. I spiced a wire into the ground wire at the tank and grounded it to the frame and had instant pressure. The best way to tell if this is the problem with efi cars is to turn the ignition off and on 6 or 8 times and if the pump does not run strong evey time reground the wire. A 5 mimute cure that lasted 6 mounths and to thimk thats why the man sold it.


Thanks
Rudy

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70 fastback cleveland 5.80'[email protected]
69 cougar elimnator b 02
84 droptop 5.0
86 hatchback 289
92 explorer
97 f350 dullie

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SteveLaRiviere
Administrator

Posts: 32655
From: Saco, Maine
Registered: May 99

posted 05-11-2002 04:09 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
Good deal, Rudy!

------------------

'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip

MCA Member # 47773

"Doubt is not a pleasant condition, but certainty is absurd."
- Voltaire

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