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Richard Hill

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Posts posted by Richard Hill

  1. As Simon mentioned, you will need to wire the output of the potentiometer to a spare analog input (with the other two pin on the pot wired to +5 Volts and sensor ground).  AN Volt 4 is shown in the example below.  Then select a spare Cal, I use 4 as it is a 2 point linear cal instead of a table.   

    image.thumb.png.9094cd4cab3e203cf3681b14d3271aa2.png

     

    Next, in the cal settings choose % as the output unit.  IT doesn't have to be %, you could leave it as 0-5 Volt raw.

    image.thumb.png.b5a6f2662c85d083da3283aa00130dd3.png

     

    I would start with open loop boost control, as you will need to find out what duty cycle is required to achieve a particular boost target.  

    image.thumb.png.74f2bfb6be10acb830e02b6963a1829f.png

    In the wastegate %DC table, select the an volt input as the y axis and populate the table with the %DC required for each boost step required.  In the example above I have used 50% duty cycle as maximum boost. 
     

    That is the easy bit done!  I would suggest looking at the help file for information about setting up boost control and when you are happy with the open loop mode, progress on to closed loop boost as this will give you more consistent boost levels which will be met and maintained by the closed loop algorithm.

     

    Regards,

      Richard.

     

     

     

  2. 8 hours ago, goyo said:

    Thanks Simon for the reply.
    And then how do I have to code the channel to make it work?

    If you're running closed loop boost control, then set your Y axis on the target table to the analog input you wire the potentiometer to.  Then change your target accordingly.  Another possible option would be to set your potentiometer input to gear position and then use the boost in gear trim table.

    Hope this helps,

      Richard.

  3. It sounds like your sensor ground wire might have a break between the ECU and the sensors.

    Try unplugging the ECU connector, and measure the resistance between pin 24 (sensor ground) and the engines sensor ground pins on the TPS or the ECT sensor.  Pin 7 is also sensor ground but I use that exclusively for triggers.

    While its unplugged check you have low resistance between power ground pins 25/34  and the engine block (or head).  I'm guessing these are OK as the ECU powers up

    HTH,

      Richard.

     

  4. That would depend on whether it is a false knock detection due to noise threshold or actually knock on cylinder 4 . 

    As mentioned above it could be a fuel issue.  Try swapping injectors between cylinders and see if the knock moves with the injector.

    If it is knock due to ignition then I would retard #4 a degree at a time in the individual cylinder ignition trim table.

     

    HTH,

      Richard.

     

     

  5. 2 more questions on the subject of CAN , is it OK to connect CAN 1 and CAN 2 to the same bus, and then use 12 CAN channels?

    The PC Link manual states in the CAN setup section:-

    · Byte Order - Configure whether the Most Significant bit comes first (MS first or Big endian) or the Least Significant bit comes first (LS first or Little endian).

    image.png.2153a5df812923e2956c249b454f6fcd.png

    This statement seems to be ambiguous as bit endianness and byte endianness are two different things.  Does it just bit swap or byte swap ? (from what i can gather i think its a byte swap only)

  6. I may have worked out the answer.  I don't think you can use the PClinks/ECUs built in starter control with CAN inputs.  

    But, I guess I can use a GP aux output with CAN digital status as an input ANDed with RPM <400 AND clutch switch depressed? to give similar functionality.

     

     Richard.

     

  7. Hello,

    I am replacing a factory ECU with a thunder.  In the original ECU the start command comes from the body control module (after interlock checks) via can bus.

    I will be wiring the thunder to control engine start via an aux out and a digital in, which input should I select in the can receive menu to enable can bus start?  

     

    Many thanks ,

     Richard. 

  8. On 4/19/2018 at 10:05 PM, JMP said:

    I've got the same lagging problems across many different laptops with pclink+, don't have the same issues with the old VTS or pclink for G4.  Most use the integrated intel graphics, Surface Laptop, Surface Pro3, recent Dell Latitude all on latest Win10 build.  Most noticeable at start but after a minute or two it becomes usable.  I'm sure it's related to graphics as if you try and move/resize a window at any time (even after it's become functional), the window doesn't show while it's being moved/resized which takes a bit of guess-work to get the move/resize right.

    The window not displaying while dragging is probably caused by a scaling issue with a non native resolution and/or scaling setup in windows display preferences (or at least it was on my laptop)

  9. 17 minutes ago, Purpleline said:

    Im new here but wonder if the PLX SM-AFR Wideband the TX/RX port can be input to g4+ as well.  Found nothing yet but there is an interfacing boards can link it up fm here.

    http://www.adaptronic.com.au/forum/index.php?topic=5414.0

    I just installed this PLX and hopefully no need to buy another set fm AeM or the LC2..... if it could work for digital output into link

    The PLX wideband digital output is RS232 in their iMFD format.  19200 baud rate, 8 data bits , no parity and 1 stop bit.  It is output at 10Hz.  They will send you a PDF file with details of the format if you ask them.  So basically no it won't work over CAN...

    Hope this helps,

      Richard. 

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