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Adamw

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Posts posted by Adamw

  2. MGP will not exceed zero

    in G4x

    Posted

    Something wrong with the fuel tune I would say. 

    In your 6;46PM log you are idling at 32kpa MAP with an inj PW of 2.2ms, lambda is richer than target.  When you open the throttle the MAP increases to 100Kpa, this is 3x higher pressure than idle so you would expect approx 3x more fuel than idle.  However your PW increases to 21ms - this is 10x more fuel?

    Are you sure it has fuel pressure?  What does it have for injectors? Where did the fuel table come from?

     

     

  3. PC Link and Firmware 6.20 released

    in G4x

    Posted

    On 9/26/2022 at 9:22 AM, 7KIT said:

    Same with you.

    After update to 6.20

    When you switch off/on very fast,  ecu will not function,  laptop also disconnected 

    Turn off around few seconds and turn on will work again

    This sounds more like a bootloader problem, not related to the firmware.  Unfortunately the bootloader update needs to be done at Link head office, it cant be performed by the end user.  Contact [email protected] if you want to arrange.   

  4. Information on ECU model and upgrade path

    in Guest

    Posted

    This is an old G4 plug-in, 2 generations old.  It was produced from about 2009-2013, so it is a bit dated today.  

    PC Link G4 is the software you need, scroll down this page to find V4.10.2:  https://linkecu.com/software-support/pc-link-downloads/pc-link-legacy-software/

    Functionality wise they are still a decent ECU.  No knock control or E-throttle capability, some software functions like mixture map were not available.  It has basic on-board logging and decent PC Logging.  Tuning software is still nice to use and has good data analysis options.  Some functions such as idle speed control are quite a bit more basic than is expected today.   

  5. Trigger

    in G4x

    Posted

    10 hours ago, merctec said:

    the thing is trigger 1 has a signal right up to the wire at the control unit plug it's just not picking it up

    How are you testing this?

  6. G4X N300 random spark when key on

    in G4x

    Posted

    This will likely be due to a hardware problem.  The ignition drive circuit in early G4X revisions could give a barely high pulse during processor boot-up which was enough to trigger a spark with some ignition systems.  The ignition drive circuit was later revised to fix this.  If you contact [email protected] and tell them you suffer from a "key-on backfire" they will arrange for it to be updated.  I think most of our international offices can do the fix so it doesnt need to come all the way be to NZ in most cases.  

  9. Strada MXS Display Inputs to ECU as Additional Sensors.

    in G4+

    Posted

    Yes the ecu can receive inputs from the dash, however be aware CAN analog inputs with a G4+ are pretty limited. List below.  As you can see oil and fuel press parameters can be written to directly so they act just like a directly wired sensor, but there is no fuel temp.  The CAN AN Volt inputs are pretty limited in what you can do with them - you can use them on an axis of a table but you cant rename them or change units etc.   

    You would probably be best to move oil press to the dash then use ECU ANV2 for fuel temp. 

    YLsUK5j.png

  10. Trigger

    in G4x

    Posted

    Yeah, you have no trigger 1 signal at all, and trigger 2 is picking up some noise.  No trig 1 signal would likely be either a wiring or sensor issue.  Trigger 2 is probably just the arming threshold too low.

    Also trigger 1 edge should not be set to all.  Typically falling is best for most hall sensors.  

  11. Turbo Hayabusa

    in G4x

    Posted

    I have no drag bike experience so this example is purely made up, but should give you the idea.  We use the open loop power reduction function in power management.  This gives you a configurable 3D table for retard and another for cut.  

    Lets say as an example we want to allow up to about 100mm front lift for the first 1 sec then bring that back down to 85mm lift over 2 seconds.  I will just explain the 0 & 1 sec columns: you can see at 95mm lift we start retarding ignition, up to a max of 30 deg at 100mm lift, if the front continues to lift then a cut will be added on top of the retard at 100mm

    A0sqdHs.png 

  24. Trigger

    in G4x

    Posted

    I have moved your post as it was not related to the firmware subject you were posting in.  

    Can you please explain the problem better - why are you fitting an extra pull-up?  what engine and ECU do you have?  Can you attach your tune and log and the trigger scope.

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