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JB4

Discussion in 'Performance and Tuning' started by 2020Platinum, Mar 25, 2023.

  1. Jun 29, 2025 at 10:31 PM
    #241
    eddiefromcali

    eddiefromcali New Member

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  2. Aug 23, 2025 at 12:09 PM
    #242
    ziznack

    ziznack New Member

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    Can anyone explain the difference between ECU boost, boost 1, and boost 2?

    Also, what is "clock" measuring?

    There seems to be a lot of choices that don't read anything.
     
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  3. Aug 23, 2025 at 2:29 PM
    #243
    eddiefromcali

    eddiefromcali New Member

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    Ecu is what the truck thinks boost is. Boost 1 and 2 are the different banks, iirc. There was a post in the jb4tech forums that explained most of the PIDs
     
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  4. Aug 23, 2025 at 2:33 PM
    #244
    ziznack

    ziznack New Member

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    I don't know what you mean by different banks and iirc.
     
  5. Aug 23, 2025 at 2:49 PM
    #245
    eddiefromcali

    eddiefromcali New Member

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    ziznack[QUOTED] likes this.
  6. Aug 23, 2025 at 3:50 PM
    #246
    ziznack

    ziznack New Member

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  7. Aug 24, 2025 at 12:20 PM
    #247
    stretch2323

    stretch2323 New Member

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    Just ordered mine
     
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  8. Sep 6, 2025 at 8:06 PM
    #248
    downthepines

    downthepines New Member

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    Anyone dyno a 91 tune? I only have 91 around me and wanted to know if I could justify this.
     
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