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Engine stalls with clutch in over 2500 rpm

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  • Engine stalls with clutch in over 2500 rpm

    86 turbo 5 speed

    Ok, my idle is at about 750 rpms. My car starts quickly & easily. If I rev the engine & let off it stalls. While driving, if I put the clutch in and just let the engine fall off instead of downshifting the engine stalls. The car stalls more easily when it's hot/fully warmed up. The car starts right back up with no issues. Just that it stalls easily, which is annoying. I have tested my car for boost leaks, which should have also found any vacuum leaks (right?) and I have fixed all boost leaks. I have my throttle cable adjusted as tight as it will go & I put a new OEM throttle cable on my car a couple of months ago. Any ideas????? Thanks.
    378whp 445wtq
    http://mark86t.zmobiledetailing.com/.../v/Black+Hole/


    Z Mobile Detailing, Las Vegas, NV

  • #2
    How high will it let you rev? If not over 2,500rpms could be the AFM...
    http://youtube.com/c/zcartube

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    • #3
      I used to experience this issue before I started playing around with the ECU. Do you still have the fuel pump wiring stock?

      Comment


      • #4
        TPS.... happens to supras from my experience. Might want to check urs

        Terrible idea putting those wheels on...

        Comment


        • #5
          300zxt wrote: How high will it let you rev? If not over 2,500rpms could be the AFM...
          Soryy I think I misled you. My car runs perfectly. But it will stall if I put the clutch in at any rev past 2500 rpms. I just want to know why my car stalls if I rev it or clutch in & coast to a stop.
          378whp 445wtq
          http://mark86t.zmobiledetailing.com/.../v/Black+Hole/


          Z Mobile Detailing, Las Vegas, NV

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          • #6
            So it DOES stall at 2,500rpms? AFM then i'd say!
            Attached Files
            http://youtube.com/c/zcartube

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            • #7
              Jason84NA2T wrote: I used to experience this issue before I started playing around with the ECU. Do you still have the fuel pump wiring stock?
              I installed the Walbro fuel pump. But that doesn't change the wiring.
              378whp 445wtq
              http://mark86t.zmobiledetailing.com/.../v/Black+Hole/


              Z Mobile Detailing, Las Vegas, NV

              Comment


              • #8
                300zxt wrote: So it DOES stall at 2,500rpms? AFM then i'd say!
                No it revs and runs perfectly. But at anything over 2500 rpms & I put the clutch in it stalls. So if I drive to a light cruising in 3rd gear & then put the clutch in and coast to the light, it stalls. If I sit in my garage & rev the car to say 4000 rpms & then just let off, it stalls.
                378whp 445wtq
                http://mark86t.zmobiledetailing.com/.../v/Black+Hole/


                Z Mobile Detailing, Las Vegas, NV

                Comment


                • #9
                  [quote]mark86t wrote:
                  Originally posted by 300zxt
                  So it DOES stall at 2,500rpms? AFM then i'd say!No it revs and runs perfectly. But at anything over 2500 rpms & I put the clutch in it stalls. So if I drive to a light cruising in 3rd gear & then put the clutch in and coast to the light, it stalls. If I sit in my garage & rev the car to say 4000 rpms & then just let off, it stalls.
                  My Z32 used to do this for a while and a lot of people mention having to put some tape over the intake filter. I'm assuming its to cause some sort of turbulence for the AFM? Mine went away after a few days of driving.
                  Originally posted by Andrew84zx
                  tell her your car is so fast it will make her panties fly off
                  545 RWHP & 540 RWTQ
                  VG30ET.com Member

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                  • #10
                    My car has done this once after I installed cams and I have been told that it can be fixed by just adjusting the idle a little higher...although my car normally idles at around 600, not 750.

                    1987 Nissan 300ZX Turbo (Budget Supercar)
                    1987 Nissan 200SX SE (Old School FR)
                    1994 Nissan Sentra SE-R (Balls To The Wall Track Car)
                    2000 Nissan Maxima SE (Daily Driver)
                    2006 Scion tC (Wife Whip)

                    In an ideal world I would have all ten fingers on my left hand, so my right hand could just be a fist for punching.

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                    • #11
                      Taris Blue wrote: My car has done this once after I installed cams and I have been told that it can be fixed by just adjusting the idle a little higher...although my car normally idles at around 600, not 750.
                      Since it is a turbo car there is no idle adjustment screw. I tried to increase my idle using the throttle cable. It's as tight as it can be adjusted & the idle never changed. I'm trying the TPS today to see if that changes anything.
                      378whp 445wtq
                      http://mark86t.zmobiledetailing.com/.../v/Black+Hole/


                      Z Mobile Detailing, Las Vegas, NV

                      Comment


                      • #12
                        [quote]mark86t wrote:
                        Originally posted by Taris Blue
                        My car has done this once after I installed cams and I have been told that it can be fixed by just adjusting the idle a little higher...although my car normally idles at around 600, not 750.Since it is a turbo car there is no idle adjustment screw. I tried to increase my idle using the throttle cable. It's as tight as it can be adjusted & the idle never changed. I'm trying the TPS today to see if that changes anything.
                        I thought you rotated the tps to adjust the idle? That is what i did...


                        Also, my car HATES to idle at 600, 800 is the best feeling.

                        Terrible idea putting those wheels on...

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                        • #13
                          Well I adjusted the TPS today as per the manual. No change. Still stalls. Gonna remove the rest of the "junk" from the plenum soon, maybe this will help.
                          378whp 445wtq
                          http://mark86t.zmobiledetailing.com/.../v/Black+Hole/


                          Z Mobile Detailing, Las Vegas, NV

                          Comment


                          • #14
                            mark86t wrote: I tried to increase my idle using the throttle cable. It's as tight as it can be adjusted & the idle never changed.
                            There is an adjustment screw on the TB itself.It basicaly prevents the
                            butterfly valve from closing completely.You will need an 8mm and a
                            flathead to adjust this screw.
                            This is how you will set your idle with the idle controls removed.
                            imagination is a virtue

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                            • #15
                              So did you replace the tps yet?

                              Terrible idea putting those wheels on...

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