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  1. H

    fuel pressure problem

    today i took apart all the lines and blew all 3 lines going to the fuel talk, disconnected fuel inlet and return line and used a air compressor and blew all the lines out and connected everything back. started up and same problem. from what i understand i can not change the polarity of the...
  2. H

    fuel pressure problem

    definetly keep u posted. thanks.
  3. H

    fuel pressure problem

    the first fpr i tried was an older fpr i just took off to put a new 'one on, looked better. Both were working. I have 3 pumps at home. the one that was dying on me witch i took out and installed this 307 in there, i than changed back to the previous fpr no difference. i have changed everything...
  4. H

    fuel pressure problem

    i dropped the tank down and sitting onstands so i could check all connections make sure no leaks, followed the lines up past the shock area where its bolted to the flooring and they are perfectly fine. when i had the pump that was dying on me in there i had no problem dropping fuel pressure...
  5. H

    fuel pressure problem

    I have put in a Walbro GSS307. witch they say is 255lph. is this to much for stock fuel lines?
  6. H

    fuel pressure problem

    hey guys, had a weird question about my gn. first after about a hour of driving fuel pressure would drop to 20psi. usually sitting at 37 vacuum line on. changed fuel pump. figured it was going. the problem i having now since i changed the fuel pump, is i can not drop the fuel pressure lower than...
  7. H

    power dies

    just found out we have the walbro 307 009 injectors. and we have the turbolink program. im hoping this is good enough for scanning the car for information Unfortunatly the transmission started to slip today when we were going to scan the car. so i will be fixing the transmission and changing...
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    power dies

    thanks for the welcoming! basically what my dad has told me this red armstrong 93 chip stock fuel pump runing 94 octane upgraded turbo internal wastegate set at 15psi fuel pressure regulator set to 48psi vacuum line off. gauge is in engine bay he thinks he put a 3500 stall converter...
  9. H

    power dies

    hey guys im fairly new to this thread, ive been reading on with my father. he recently just handed me the keys to his grand national and has left some problems up to me to figure out. well the main problem we are having is that the car will build boost to about 15 boost pull fairly strong till...
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