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vacuum leak or wg problem?

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  • #16
    i really wish my usb>serial cable would get here, i think it may be the mafs.
    Proud owner of the 2nd Skyline and the only GTR on the island!

    Boost@14PSI, YellowJacket Coils, Extreme TSC, Full Nismo N1 Bodykit, Greddy Speed Cut Controller, HKS Turbo Timer, 280LPH Denso Fuel Pump, Nismo Slave Cylinder, AMS BOVs, Nismo Clutch Pivot, ACT Xtreme 6 Puck and HDPP, Greddy Panel Filter

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    • #17
      Yeah....datalog that shyt. I aught to get one of them as well.

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      • #18
        datalogged it and everything looks fine, although i cant monitor knock sensors.The tube going to one of my mafs was loose but the car still doesnt have the power it should, the idle is a bit better now but rpms are jumping by 50 or so
        Proud owner of the 2nd Skyline and the only GTR on the island!

        Boost@14PSI, YellowJacket Coils, Extreme TSC, Full Nismo N1 Bodykit, Greddy Speed Cut Controller, HKS Turbo Timer, 280LPH Denso Fuel Pump, Nismo Slave Cylinder, AMS BOVs, Nismo Clutch Pivot, ACT Xtreme 6 Puck and HDPP, Greddy Panel Filter

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        • #19
          Originally posted by MikeRWK View Post
          yes it will hold but only goes upto 7psi
          That mark where it goes to in the video..is stock boost.

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          • #20
            yes but its not reving as high as it should, im going to use the nistune software to log the knock activity
            Proud owner of the 2nd Skyline and the only GTR on the island!

            Boost@14PSI, YellowJacket Coils, Extreme TSC, Full Nismo N1 Bodykit, Greddy Speed Cut Controller, HKS Turbo Timer, 280LPH Denso Fuel Pump, Nismo Slave Cylinder, AMS BOVs, Nismo Clutch Pivot, ACT Xtreme 6 Puck and HDPP, Greddy Panel Filter

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            • #21
              looks like limp mode to me! My guess is a faulty sensor is throwing your car into limp mode. Check ECU for codes and get back at me with the codes, ill try to help. You also have a 4WD light on, whats the code for that one? count the flashes in your trunk on the ATTESSA module.

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              • #22
                4wd and abs are on because i have it in 2wd, the clutch was changed and the attessa system wasnt bled, i get no cels and i have no way to log knocks.
                Proud owner of the 2nd Skyline and the only GTR on the island!

                Boost@14PSI, YellowJacket Coils, Extreme TSC, Full Nismo N1 Bodykit, Greddy Speed Cut Controller, HKS Turbo Timer, 280LPH Denso Fuel Pump, Nismo Slave Cylinder, AMS BOVs, Nismo Clutch Pivot, ACT Xtreme 6 Puck and HDPP, Greddy Panel Filter

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                • #23
                  ok so that means your problem is not within the spectrum of your ecu. Must be something like... fuel pressure would be my best guess. Is that video of you flooring your car? Or were you part throttle ?

                  I doubt its a MAF problem as your plugs look like theyre burning a near ideal mixture...

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                  • #24
                    i cant floor it, its gutless, also sometimes it stalls when i try to start it. maybe i should borrow a fuel pressure gauge
                    Proud owner of the 2nd Skyline and the only GTR on the island!

                    Boost@14PSI, YellowJacket Coils, Extreme TSC, Full Nismo N1 Bodykit, Greddy Speed Cut Controller, HKS Turbo Timer, 280LPH Denso Fuel Pump, Nismo Slave Cylinder, AMS BOVs, Nismo Clutch Pivot, ACT Xtreme 6 Puck and HDPP, Greddy Panel Filter

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