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Thread: SAE.MAP Issue

  1. #1
    Member
    Join Date
    Aug 2016
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    90

    Default SAE.MAP Issue

    I've got something really simple that seems to be kicking my butt here. At some point in the last few days my MAP readings have gone all crazy. I'm using the 12592525 GM 3 Bar, Linear/Offset settings are 312.00/-11.25 as always, and my minimum/maximum are set the same. I've checked the 5V supply to the sensor and it is good at 5.0V, and the Signal voltage shows at 1.7-1.8V. In Scan Data instead of seeing 100kpa I'm seeing 32kpa, which corresponds to the 1.8V Signal V if I were using a 1 Bar sensor. When I start the car, it goes to 0kpa, which of course messes with the Map/Baro Ratio. I've already installed a new spare Map sensor with the same results.
    Somewhere along the line something has gone awry, but I'm not sure where to go next. Any help would be appreciated.

  2. #2
    Member
    Join Date
    Aug 2016
    Posts
    90

    Default

    Ok well it took looking back at a post from 7 years ago, but somehow the units for B2101 got changed from kpa to PSI! We're good for now, thank you.

  3. #3
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
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    28,403

    Default

    Ok, good you got it sorted out

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