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    1. Member Mr_Long's Avatar
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      01-15-2007 11:51 AM #1
      Folks,

      If I'm not wrong, VR6 runs at 3 bar (43.5 PSi) of fuel pressure, I have a Fuel Pressure Regulator but it do not come under 55 PSi @ idle ..... pls help, it is a 95 GTi


      Modified by Mr_Long at 5:03 PM 1-15-2007

      87 GLi ---> 94 Golf ---> 95 GTi ---> 02 GTi AUQ

      K03S, Wetterauer tune, 3" Magnaflow exhaust, 3" Ebay DP, EIP clutch, DogBone poly inserts, Hyperboost XS, Power Gasket, FK Springs, APR Turbo inlet, Ebay FMIC, Genesis Pump, BFI MK4 Stage 1 Mount Kit, Performance Polyurethane Strut Mount Bushings ...

    2. Member CDJetta's Avatar
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      01-15-2007 12:07 PM #2
      buy another FPR that goes under 55psi??

    3. Member Mr_Long's Avatar
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      01-15-2007 12:13 PM #3
      Maybe I wasn't clear enough...

      Can't get the fuel pressure to go under 55PSi, no matter wich way I turn pressure regulator....i dont know if this is a VR6 issue but maybe any of yoou can really help me or give any good ideas.

      87 GLi ---> 94 Golf ---> 95 GTi ---> 02 GTi AUQ

      K03S, Wetterauer tune, 3" Magnaflow exhaust, 3" Ebay DP, EIP clutch, DogBone poly inserts, Hyperboost XS, Power Gasket, FK Springs, APR Turbo inlet, Ebay FMIC, Genesis Pump, BFI MK4 Stage 1 Mount Kit, Performance Polyurethane Strut Mount Bushings ...

    4. 01-15-2007 12:38 PM #4
      What FPR? Part #?

    5. Member Mr_Long's Avatar
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      01-15-2007 01:19 PM #5
      This may help.

      The part number on the stock unit is 0280160507...thanks in advance

      87 GLi ---> 94 Golf ---> 95 GTi ---> 02 GTi AUQ

      K03S, Wetterauer tune, 3" Magnaflow exhaust, 3" Ebay DP, EIP clutch, DogBone poly inserts, Hyperboost XS, Power Gasket, FK Springs, APR Turbo inlet, Ebay FMIC, Genesis Pump, BFI MK4 Stage 1 Mount Kit, Performance Polyurethane Strut Mount Bushings ...

    6. Member sun98gtiVR6's Avatar
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      01-15-2007 01:31 PM #6
      As I recall fuel pressure for AAA VR6 motors is supposed to be 51psi,per Bentley manual. Ive been having a related issue with my 98 VR6 GTI. My cars pressure is too low (36psi) after all fuel components except the hoses & injectors have been replaced.

    7. Member Mr_Long's Avatar
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      01-15-2007 01:46 PM #7
      You can read on the stock pressure regulator that it say 3.0 BAR

      1 BAR = 14.5 x 3 = 43.5 PSi

      87 GLi ---> 94 Golf ---> 95 GTi ---> 02 GTi AUQ

      K03S, Wetterauer tune, 3" Magnaflow exhaust, 3" Ebay DP, EIP clutch, DogBone poly inserts, Hyperboost XS, Power Gasket, FK Springs, APR Turbo inlet, Ebay FMIC, Genesis Pump, BFI MK4 Stage 1 Mount Kit, Performance Polyurethane Strut Mount Bushings ...

    8. Member sun98gtiVR6's Avatar
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      01-15-2007 01:58 PM #8
      My old FPR and the new one are both marked 3.0bar, if the pressure is supposed to be 3bar why does the Bentley say all AAA motors 51psi with vac hose connected, 58psi disconnected?????


      Modified by sun98gtiVR6 at 1:01 PM 1-15-2007

    9. Member Mr_Long's Avatar
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      01-15-2007 06:45 PM #9
      well sun....I just don't know maybe someone in here can let us know and at the same time help me
      87 GLi ---> 94 Golf ---> 95 GTi ---> 02 GTi AUQ

      K03S, Wetterauer tune, 3" Magnaflow exhaust, 3" Ebay DP, EIP clutch, DogBone poly inserts, Hyperboost XS, Power Gasket, FK Springs, APR Turbo inlet, Ebay FMIC, Genesis Pump, BFI MK4 Stage 1 Mount Kit, Performance Polyurethane Strut Mount Bushings ...

    10. Member WolfzGangVR6's Avatar
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      99 B5 variant 1.8t /87 jetta coupe 16v(9a w/ 2.0Tfsi rods & pistons) / 90 jetta vrT (r.i.p. Nadia)
      01-15-2007 07:07 PM #10
      Quote, originally posted by Mr_Long »
      This may help.

      The part number on the stock unit is 0280160507...thanks in advance

      if that's your engine bay then i think you should try to take the adjustable fpr out and then test pressure if you already haven't tried that.

      50 to 60 pounds is about average for almost any gas motor.

      diesels run in the thousands!

      Quote Originally Posted by nothing-leaves-stock View Post
      if you owe a VW and DON'T have AAA gold...your an idiot haha
      ........... \_________
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      ...... l________l____/_____l
      .......\__( o )_______( o )__/ ........the coupe.....

    11. 01-15-2007 07:19 PM #11
      Stupid question, but are you measuring the fuel pressure before or after the FPR?

    12. Member Mr_Long's Avatar
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      01-16-2007 10:30 AM #12
      After...but I'll remove the adjustable FPR and will messure to see what happens.
      87 GLi ---> 94 Golf ---> 95 GTi ---> 02 GTi AUQ

      K03S, Wetterauer tune, 3" Magnaflow exhaust, 3" Ebay DP, EIP clutch, DogBone poly inserts, Hyperboost XS, Power Gasket, FK Springs, APR Turbo inlet, Ebay FMIC, Genesis Pump, BFI MK4 Stage 1 Mount Kit, Performance Polyurethane Strut Mount Bushings ...

    13. Geriatric Member need_a_VR6's Avatar
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      01-16-2007 12:05 PM #13
      A 1995 OBD1 will have a 4bar (58psi) regulator which will give you that pressure with the car running and the vac line disconnected fromt the FPR.

      There is no way to LOWER the pressure with the stock 4 bar regulator in there. It can only RAISE the pressure above what the installed fuel rail mounted regulator is. You could switch to a 3bar (or lower) and then tune it from there.


      Modified by need_a_VR6 at 12:08 PM 1-16-2007

      -Paul
      1995 GTI VR6 - Retired - 12.90@106 R32 power - 12.833@106 12v power
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    14. Member Mr_Long's Avatar
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      01-16-2007 12:17 PM #14
      But the stock FPR is for 3.0 BAR at says on it...but if 55 is ok, no pro...THANKS A LOT
      87 GLi ---> 94 Golf ---> 95 GTi ---> 02 GTi AUQ

      K03S, Wetterauer tune, 3" Magnaflow exhaust, 3" Ebay DP, EIP clutch, DogBone poly inserts, Hyperboost XS, Power Gasket, FK Springs, APR Turbo inlet, Ebay FMIC, Genesis Pump, BFI MK4 Stage 1 Mount Kit, Performance Polyurethane Strut Mount Bushings ...

    15. 01-23-2007 12:44 AM #15
      mk3 vr6 have 4bar FPR stock.

    16. Member rhussjr's Avatar
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      01-23-2007 05:50 AM #16
      Not all Mk3 have 4 Bar (only the early OBD1 cars had 4 Bar and not all of them had it), OBD2 cars have 3 Bar. So his is possible to have a 4 Bar which would explain the pressure at idle.
      SOWO key chains for "Relay For Life" - Make a difference....

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