fuel pressure

  1. B

    '03 GT Fuel Pump/Pressure/Delivery Issue

    This relates to a 2003 Mustang GT, no major mods, just a standard stock '03 GT. Also, I apologize for the long post but I feel like context is needed. I will preface this to show how I got to where I am: Back in 2017/2018 my fuel tank was rusted and causing a leak. I replaced the tank, moved...
  2. Noobz347

    SURGING IDLE / NO IDLE CHECKLIST FOR 1999–2004 MUSTANG GT (4.6L 2V) - Work In Progress

    SURGING IDLE / NO IDLE CHECKLIST FOR 1999–2004 MUSTANG GT (4.6L 2V) This is a work in progress. Please run this checklist when it is applicable to you and provide feedback to help improve it. Feel free to comment with corrections or suggestions or diagrams or pinouts that you think might be...
    • Noobz347
    • Thread
    • 99-04 mustang gt coil on plug dpfe egr fpdm fuel pressure iac valve idle problem maf sensor misfire no idle obd-ii codes returnless fuel system rough idle surging idle tps sensor vacuum leak
    • Replies: 0
    • Forum: 1996 - 2004 SN95 Mustang -General/Talk-
  3. Noobz347

    SURGING IDLE / NO IDLE CHECKLIST FOR 1996–1998 MUSTANG GT (4.6L 2V) - Work In Progress

    This is a work in progress. Please run this checklist when it is applicable to you and provide feedback to help improve it. Feel free to comment with corrections or suggestions or diagrams or pinouts that you think might be useful. SURGING IDLE / NO IDLE CHECKLIST FOR 1996–1998 MUSTANG GT...
    • Noobz347
    • Thread
    • 96-98 mustang gt dpfe egr fuel pressure iac valve idle problem maf sensor misfire no idle obd-ii codes rough idle surging idle tps sensor vacuum leak
    • Replies: 0
    • Forum: 1996 - 2004 SN95 Mustang -General/Talk-
  4. J

    Fuel Fuel Pressure Issue

    Hey guys I have a 1986 5.0 (with efi). Anyways i bought the car with the issue of it running rich and I'm still having that issue. Come to find out its pushing 55 psi of fuel pressure at the rail. The car currently has stock injectors but I found 30lb/hr injectors in the back of the car. Long...
  5. P

    P0190 Code

    So I have a 2001 Mustang GT that has been throwing me the P0190 code on and off since I got the car a few weeks ago. Sometimes the car will start perfectly fine and have no CEL, but other times the car will start and the rpms will be low. When this happens, the rpms usually raise back up and...
  6. EX-SSP

    Fuel fuel pressure woes...

    So, I have a similar issue to white91 had with his fuel pressure. Pressure is set at 41 psi, vac line off. However, when I throttle the engine, it drops. It doesn't drop as much as others have experienced. It only drops about 5 psi to about 35-36 under throttle. The right back to 41 psi at idle...
  7. Slygh93

    Fuel 91 fox low fuel pressure issues

    Hey there, long time reader/ searcher of the forum. Just never actually posted. But anywho i have a 91 fox that i purchased recently. It has a trick flow intake manifold, a bbk cold air intake/mass air flow/ 70mm throttle body, 24# injectors, under drive pullies and a few other things i cant...
  8. SlowInThe850

    Fuel Pressure Issue

    Hi everyone. Long time lurker but first time poster here. I have a 2003 mustang gt that is having some fuel pressure issues. It's taking longer to start, but it has started every time I try it. Sometimes the car will die immediately after cranking, but it will start right back up...
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