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Thread: AEM X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge

  1. #11
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    Innovates LC-1 controller with 4.2 lsu response speed is 200-300hz, the serial out is 12hz, so that all efilive can poll, canbus seems to be the way forward, can bus can be variable upto 200hz following this information about OBD2.

    http://www.dewamerica.com/downloads/...DII_Manual.pdf



    Quote Originally Posted by Innovative Motorsports
    The LC-1 samples internally with the highest speed the sensor itself can sustain, controlled by the sensor's internal response time. This is about 200-300 Hz(200-300 times a second) on the LC-1. This is also the update rate of the analog outs in instant mode.
    When set for example to 1/12th, the LC-1 sums together all samples for a 1/12th second period and counts the number of samples summed so far. When a 1/12th second period has passed, it divides the collected sum by the number of samples collected and outputs that value, which is then the average value over 1/12th second, on the analog outs and resets the sum and counter for the next 1/12th second period. As the logging speed on the serial port is also 12Hz, what's logged is also that average over 1/12th. With 1/6th speed the average over two 1/12th periods is output every 1/6th second. With 1/3rd speed the average over four 1/12th periods is output every 1/3rd second'


    Is this on the list of things to update to EfiLive?

  2. #12
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    FSV2 V8 software has two options for logging, CAN or VPW, whats the difference?

    I can see three options, slow medium and fast (10
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    Last edited by Gelf VXR; May 29th, 2016 at 05:13 PM.

  3. #13
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    Whats the difference between V7.5 stream fast and V8 fast can scan modes?
    Last edited by Gelf VXR; May 29th, 2016 at 06:07 PM.

  4. #14
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by gelf vxr View Post
    fsv2 v8 software has two options for logging, can or vpw, whats the difference?

    ...
    can = e38, e39, e67, e78, e83, e92.
    Vpw = ls1a, ls1b, e40.


    edit: dangit, my capitalizations got parsed.

  5. #15
    EFILive Developer Site Admin Blacky's Avatar
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    Quote Originally Posted by Gelf VXR View Post
    FSV2 V8 software has two options for logging, CAN or VPW, whats the difference?

    I can see three options, slow medium and fast (10
    CAN = Controller Area Network Protocol which (for high-speed GM-LAN network) operates at 500kbps.
    VPW = Variable Pulse Width Protocol which (for GM's class-2 network) operates at 10.4kbps in normal mode and 41.6 (4x) in high-speed mode. VPW high speed mode is reserved for reading/flashing controllers and is not available for data logging.

    The various settings you have posted are:

    1. The logging speed for black box logging can be:

    • Fast which is equivalent to V7's Stream-Fast mode.
    • Medium which is equivalent to V7's Dynamic mode.
    • Slow which is equivalent to V7's General mode.
      Note: V7's Stream-Slow mode is not supported in V8.


    2. EFILive's Fast CAN mode speeds up flashing by optimizing the delay between CAN data frames. It has no impact on data logging.

    3. Pass-though data logging storage limits. This setting merely reserves memory space for data log storage and does not affect logging speed. However, the logging speed (CAN v's VPW) will affect how long you can log within a limited amount of storage space.

    4. The various V7 data logging speeds, see point 1 above.

    You can find more information about logging speeds in Appendix-E (page 184) of the V7 Scan Tool User Manual.

    Regards
    Paul
    Before asking for help, please read this.

  6. #16
    EFILive Developer Site Admin Blacky's Avatar
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    Quote Originally Posted by Gelf VXR View Post
    Innovates LC-1 controller with 4.2 lsu response speed is 200-300hz, the serial out is 12hz, so that all efilive can poll, canbus seems to be the way forward, can bus can be variable upto 200hz following this information about OBD2.

    http://www.dewamerica.com/downloads/...DII_Manual.pdf



    Quote Originally Posted by Innovative Motorsports
    The LC-1 samples internally with the highest speed the sensor itself can sustain, controlled by the sensor's internal response time. This is about 200-300 Hz(200-300 times a second) on the LC-1. This is also the update rate of the analog outs in instant mode.
    When set for example to 1/12th, the LC-1 sums together all samples for a 1/12th second period and counts the number of samples summed so far. When a 1/12th second period has passed, it divides the collected sum by the number of samples collected and outputs that value, which is then the average value over 1/12th second, on the analog outs and resets the sum and counter for the next 1/12th second period. As the logging speed on the serial port is also 12Hz, what's logged is also that average over 1/12th. With 1/6th speed the average over two 1/12th periods is output every 1/6th second. With 1/3rd speed the average over four 1/12th periods is output every 1/3rd second'


    Is this on the list of things to update to EfiLive?
    The EFILive software/firmware samples wide band O2 data inputs for each complete data frame that is logged from the vehicle. So if EFILive is logging data frames at 40 fps then it will sample the wide band O2 data input at 40 samples per second. If the wide band data input is not updated as often, then duplicate samples will be logged. If the wide band data input is updated more often, then some samples will be dropped.

    Regards
    Paul
    Before asking for help, please read this.

  7. #17
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    Quote Originally Posted by joecar View Post
    can = e38, e39, e67, e78, e83, e92.
    Vpw = ls1a, ls1b, e40.

    Is E40 not CAN connection to efilive? I came across this in the EfilIve Bench harness tutorial? Just checking

    http://download.efilive.com/Tutorial...20Tutorial.pdf
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  8. #18
    EFILive Developer Site Admin Blacky's Avatar
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    Quote Originally Posted by joecar View Post
    can = e38, e39, e67, e78, e83, e92.
    Vpw = ls1a, ls1b, e40.
    can = e38, e39, e40, e67, e78, e83, e92.
    Vpw = ls1a, ls1b

    I think the E40 had some minor VPW capabilities to allow it to talk to some legacy VPW modules that were still in use when the E40 was released.

    Regards
    Paul
    Before asking for help, please read this.

  9. #19
    Joe (Moderator) joecar's Avatar
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    Ok, thanks for the e40 clarification.

  10. #20
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    Can we add the AEM as a 'virtual ecu' to log 1-2 pids from it?

    A/F ratio and voltage.

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