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Thread: I need help with my wide band

  1. #1
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    Default I need help with my wide band

    When I got my wide band I couldn't figure out how to get it to show AFR instead of Voltage so I played with the Calibrate AD inputs menu.
    Now I figured it out and my guage reads richer than what it shows on my logs. How do I fix this? Is there a way to reset the ad input voltage?
    I am using a PLX wideband if that makes a difference.

  2. #2
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    Anybody?

  3. #3
    Lifetime Member mr.prick's Avatar
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    You need to connect the V2 to the OBDII port and laptop to calibrate the AD inputs.

    Use some AA batteries to test/calibrate.
    512k RoadRunner Firmware 12.14R
    FlashScan V2 Bootblock V2.07.04 Firmware V2.07.22 EFILive V7.5.7 (Build 191) V8.2.1 (Build 181)
    LC-1 WBO2

    _________________________________________________

  4. #4
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    I tried to calibrate it and its not working. It reads 23 millivolts too low. Can I somehow modify the PID to show that much higher?

  5. #5
    Joe (Moderator) joecar's Avatar
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    You can edit the calc pid to add 0.023V... but do you realize the difference will be less than 0.5%...?

  6. #6
    Lifetime Member mr.prick's Avatar
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    I'd be sure of the calibration before skewing it with a calc_pid.

    Is the reading off with battery or WBO2 output?
    Use a DMM to make sure the battery you use is up to snuff.
    512k RoadRunner Firmware 12.14R
    FlashScan V2 Bootblock V2.07.04 Firmware V2.07.22 EFILive V7.5.7 (Build 191) V8.2.1 (Build 181)
    LC-1 WBO2

    _________________________________________________

  7. #7
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    Reading off a battery. I am using a DMM. I read the http://forum.efilive.com/showthread....ght=plx+serial
    mr.prick I think I saw that you did that. Could you tell me what the easiest way is to do this? There seems to be several different ways. I would not like to cut my
    serial cable if I don't have to.

  8. #8
    Lifetime Member mr.prick's Avatar
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    I used 1 AA battery to initialize 1.5v
    and 3 AA batteries to calibrate 4.6v

    Be sure to type in the millivolts per DMM reading.

    You can do this with the efilive control panel software or through the V2's menu.
    The V2 will need to be connected to the OBDII port.
    512k RoadRunner Firmware 12.14R
    FlashScan V2 Bootblock V2.07.04 Firmware V2.07.22 EFILive V7.5.7 (Build 191) V8.2.1 (Build 181)
    LC-1 WBO2

    _________________________________________________

  9. #9
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    Well I just did the serial comm modification. I get a lot of spikes, some freezing, and drifting. Has
    anyone figured out how to fix this yet? Please look at my log to see if my readings look correct. I know its lean,
    but want to make sure my WB is reading correctly before I make changes.
    Attached Files Attached Files

  10. #10
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    OK. Now when I turn it on it reads correctly for a few seconds then goes to 10 AFR and stays there or it freezes. Help please!

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