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Thread: LC1 offset question

  1. #1
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    LC1 offset question

    LC1 output voltage only 4.90v, so I use 4.90v for the offset formula since i'm not getting the full 5v right ?

  2. #2
    Señor Tuner MeentSS02's Avatar
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    I'd only use data points between 1-4V - anywhere at the edges tends to get clipped.
    2008 Viper - now with HPToona - 1/4 Mile Shenanigans Here
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  3. #3
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    so set up LC1 to output 1v=10 AFR, 4v= 18AFR ?

  4. #4
    Señor Tuner MeentSS02's Avatar
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    Nah, I'd still set it from 0V = 10 AFR and 5V = 18 AFR, but wouldn't expect it to be accurate at either 0 or 5 volts just due to clipping. So if you are finding the offset, find what the offset is at like 2.5 or 3 Volts...somewhere in the middle that isn't at the extremes.
    2008 Viper - now with HPToona - 1/4 Mile Shenanigans Here
    11.02 @ 130

  5. #5
    HP Tuners Owner Keith@HPTuners's Avatar
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    on mine I think I'm using 0.5-4.5 12afr-18afr
    We got this guy Not Sure, ...

  6. #6
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    programmed LC1 for .5v=10 AFR, 4.5v= 18 AFR...getting 4.36v at input to EIO but showing 4.42 raw voltage in HPT..how the hell does that happen ? I'm gainin voltage instead of loosin it ?

  7. #7
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    and for the love of God someone please confirm the wiring of LC1 to HPT...currently have :

    Analog out to EIO + input
    System and Analog gorund wired together going to EIO ground
    Using switched 12v form fuse panel
    Heater ground to pass head ground

  8. #8
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    commanded flatline 2.5v....gettin 2.4 at EIO input, 2.45 in HPT....what's goin on ?

  9. #9
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    Quick question on the scaling of the preconfigured PID that comes with MPVI Pro that is setup for the LC-1 wideband(Analog Out 2)? From the factory the LC-1's Analog Out 2 is programmed to output 0V=7.35 and 5.0V=22.39 afr. What is the PID in MPVI Pro scaled for?

    Thanks in advance.

  10. #10
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    default LC1 PID matches default LC1 programming