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Leonv33

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Posts posted by Leonv33

  1. Fuel pump controller setup

    in G4+

    Posted

    On 8/30/2019 at 6:10 PM, Adzn3k said:

    Hi guys

    I recently fitted a fuel pressure sensor and I'm seeing a differential pressure drop when on boost. As soon as the car sees positive boost the differential pressure starts to drop progressively and at 0.8 bar its showing a drop of 1.5bar. 

    I'm still on the stock fuel pump wiring which has a resistor pack, the cars running a walbro 225, a dwr1000 fpr and id1000 injectors. 

    I have a feeling the stock wiring setup is what's causing me the issue. I'm looking at changing the walbro 225 out for a 450 and then making my own wiring and control the new pump via pwm and an ssr I've searched and found this wiring diagram:

    vipec_SSR_wiring.jpg.170d3de8d0e056d928b

    After reading the threads it seems that the jury was still out of the above diagram is the way to go. 

    This:https://www.nzefi.com/product/fuel-pump-pwm-speed-controller/

  2. GTRLink plugin expansion connector

    in G4+

    Posted

    23 minutes ago, Adamw said:

    The external 5V supply is very generous in the Link ECU's.  It is officially rated to 1500mA.  There is also a seperate reg for most of the internal stuff such as pull-ups etc so you dont need to factor those into your calcs.

    Thanks, just could not find that info anywhere in any documentation hence the question.

    All good !

  3. GTRLink plugin expansion connector

    in G4+

    Posted

    On the subject of the expansion connector regarding the signal ground.

    All my temp and pressure sensor grounds come through here but how about frequency based sensor ground ? can that also come through here (interference distortion)

    Just making a turbo speed input using Richard's example from another post, thanks again Richard :-)

    Help always appreciated!!

     

  8. Turbo Speed Input: G4+ Thunder DI 11-16

    in Guest

    Posted

    On 11/29/2018 at 6:55 AM, CamB said:

    > I understand that pin Q5 is the ÷10 output that gets fed into the ECU's DI input. Correct

    > +5VDC from ECU sensor power supply goes to which pin on the IC? VDD - pin 16
    > Turbo speed sensor original output goes to what pin on the IC? D = Data - pin 1
    > Does the IC need power earth or sensor earth fed into it and on what pin? I'd ground to chassis, all the ones shown (Jam 1-5 and R for reset) and VSS

    I know its an old thread but I am just in the process of fitting an EFR speed sensor and was reading Richards original post regarding the 4018IC.

    In Richard's explanation he has the Clock (pin 14 of the IC) as the input and not D  (pin 1) as suggested here.

    Just making one up and any help for an electronic newbie much appreciated.

     

  10. Fuel Pump Control

    in G4+

    Posted · Edited by Leonv33

    Hi Mike,

    Are you getting a screen like below with the odd units "%FF" showing?  If so I suspect this might just be a display bug and it will probably still work ok if you just pretend these are duty cycle.   

    Capture.png

    Hi Adam,

    Yes it has x%FF, maybe x % full flow not sure.  If I use open loop the table, X is Inj Duty Cycle% and cannot be changed.

    It is a mystery , well to me anyway. No doubt there is a very simple answer! 

    Its not something I want to experiment with and must work correctly from the onset.

    I now have a Pierburg intank screw pump to replace my old intank supply and external Bosch 044/surge tank.

    The original 3 stage FPCM (r33gtr) would be great but it would not be durable and will fail with the increased load.

    Just need to run the new PWM FPC the same way really without getting too elaborate.    

     

  11. Fuel Pump Control

    in G4+

    Posted

    Hi Scott,   regarding setting up the speed control, I will just use the 80Hz 33/66/100 D.C to keep it simple.

    The PWM controller needs 100HZ which I can change in Aux outputs # FP Speed, however the controller D.C is regulated by the Inj. D.C .

    How do I set this up when running a modelled fuel equation where I have no visible Inj. D.C?

    Appreciate your help

    Mike

     

  13. Fuel Pump Control

    in G4+

    Posted

    Hi all just hoping someone can clarify this for me please.

    The Fuel pump control setting in Aux outputs using the 2D Open Loop Table which has an X axis of  Injector D.C % only.

    I am using the modelled fuel equation and my question is how can I relate the VE number in the #1 3D fuel table to the Injector D.C% number in the FP 2D open loop table?

    If I was running traditional msec then its easy however I'm baffled by this one sorry.

    As always really appreciate this forum!

     

  16. CAN communication issues on GTR Plugin

    in G4+

    Posted

    Hi Scott,

    In the photo of the circuit board on the CAN/RS232 connector could you please tell me if the Hi an Lo are correctly placed.

    With the CAN /RS232 disconnected from the board there are still errors.

    Also shows config for both CAN devices

    Double checked the wiring again and it appears good.

     

    Thanks 

    Mike

    Doc2.docx

  19. CAN communication issues on GTR Plugin

    in G4+

    Posted

    I am having a problem with the ecu recognizing my KMS eugo CAN controller and Plex SDM300 dash.

    Set them all up correctly on CAN1 as per the instructions but when a CAN device search is done " nothing found" is reported.

    Attached a pic of the board. 

    The CAN loom is less than 1.5 meters long and the SDM (with internal CAN resistor) sits at the end of it.

    The KMS is around 30cm from the ECU.

    Triple checked all the wiring before connecting and it is solid. Devices power up fine but no communication.

    GTR_Plugin.thumb.JPG.aa8979cff1b42a8f41fJust wondering if it has anything to do with the ECU/PC cable still having the CAN hi Lo or am I missing something totally obvious.

    Once again all help is very much appreciated!

    Best regards,

    Mike

     

     

     

     

     

  21. Skyline gtr G4+ plugin fuel pump control

    in G4+

    Posted

    Just after some answers on the base map config file relating to an S2 skyline r33 gtr supplied in PCLink ecu manager.

    1/ Aux 6  (pin 18) drives the fuel pump relay and Aux2 (pin 104) is FP speed @200hz  on the OEM FPCM the OEM ecu controls 104 and 106  (aux2 and aux1) Aux 1 is "off" on the g4+ so my question is what is aux 2 's function.  

    The FPCM I think either is switched to earth on one and through a ballast resistor on the other to slow pump down.

    I run a standard intank pump and a bosch inline/surge tank with separate relay driven by intank relay and just want the intank pump to run full speed.  

    just trying to avoid ripping out the back seats and actually bypassing the FPCM or just running pump -ve  to earth?

    Also noticed AIT is set up on AN Temp 3. This is on the XS loom. My IAT is on AN temp 2 (pin 36)  easy fix anyway.

    Thanks for any help or info !!

  22. Nissan GTS-GTR G4+ Xtreme Plugin - OEM Knock Sensor

    in G4+

    Posted

    with me they are set as 4-10 Khz wide band, on that setting i get best noise from them in ECU , i have knock treshold setted on dyno, and auto knock retard timing when it goes over the treshold.

    You only need to set the indivdual cilindersettings as sensor are shorter to one cilinder then the other.

    works like a charm.

    Hi Gojira,  You are tuning a Skyline gtr with oem sensors? if so, that's great to know they work well with the ecu, I'll definitely set it up like yours!  

    Cheers

     

     

     

  24. Nissan GTS-GTR G4+ Xtreme Plugin - OEM Knock Sensor

    in G4+

    Posted

    Hi all,

    Could anyone tell me if the standard R33gtr RB26 knock sensors are okay to use with knock control on the G4+ extreme.

    Are they wide band like the Bosch?

    Changing them to Bosch would be a painful experience and I would like to avoid it if possible.

    Presently run a Link knock light which seems to work under 5500rpm but flashes quite a bit after that from excessive noise.

    Appreciate all advice.

     

    Cheers Mike

     

     

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