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Ford PID 0x22 Fuel Rail Pressure - ELM327/Hyperterminal

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  • Ford PID 0x22 Fuel Rail Pressure - ELM327/Hyperterminal

    I have a USB ELM327 (V1.5). I am trying to get the fuel rail pressure from the truck which is listed as 0x22. I would happily use software but I either cant get it to display the data in real time (scantool.net) or the software wants me to upgrade (pay money) to display the live data. So I am using hyperterminal. A couple of questions:

    (1) How do a convert the FRP PID 0x22 hex data to a readable number in kPa or PSI?
    (2) When I enter 0122 to get the value, the value varies up and down quite a bit - is this to be expected?

    thanks!

  • #2
    Originally posted by autocar View Post
    I have a USB ELM327 (V1.5). I am trying to get the fuel rail pressure from the truck which is listed as 0x22. I would happily use software but I either cant get it to display the data in real time (scantool.net) or the software wants me to upgrade (pay money) to display the live data. So I am using hyperterminal. A couple of questions:

    (1) How do a convert the FRP PID 0x22 hex data to a readable number in kPa or PSI?
    (2) When I enter 0122 to get the value, the value varies up and down quite a bit - is this to be expected?

    thanks!
    Wikipedia has a great chart breaking down how to convert the raw data. Here's a link http://en.wikipedia.org/wiki/OBD-II_PIDs
    98' Honda CR-V
    http://www.superbluecrv.com

    *OBDMPG, the RR OBD Plugin*

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    • #3
      Originally posted by mezz64 View Post
      Wikipedia has a great chart breaking down how to convert the raw data. Here's a link http://en.wikipedia.org/wiki/OBD-II_PIDs
      Oops - well thats embarassing - thanks!

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