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  • N54: Can Cobb AP monitor engine vacuum?

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    1. 10-15-2013, 04:48 PM #26
      Tony@VargasTurboTech is offline Guest Vendor
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      Click here to enlarge Originally Posted by ajm8127 Click here to enlarge
      That is strange, man. When displaying "Boost" my AP will show all the way down to -11 or so psi, then all the way up to 16 or so which is about where I'm targeting now.

      What happens when you select "MAP" instead of "Boost?
      Thats exactly what it should do and always has, I have not tried map. I honestly am starting to think its the beta firmware I am running. I may try to go back. josh@cobb can you chime in here and see if you can lend any insight?
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    2. 10-15-2013, 05:35 PM #27
      JoshBoody is offline Member
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      it does seem like yours is only reading CP and the tip in discrepancy is due to throttle plate position. Maybe Cobb changed it... my logs were from sometime ago and I don't remember the last time I updated the AP. Did you try the MAP channel?
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    3. 10-15-2013, 05:42 PM #28
      Tony@VargasTurboTech is offline Guest Vendor
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      Click here to enlarge Originally Posted by JoshBoody Click here to enlarge
      it does seem like yours is only reading CP and the tip in discrepancy is due to throttle plate position. Maybe Cobb changed it... my logs were from sometime ago and I don't remember the last time I updated the AP. Did you try the MAP channel?
      Cobb changed it, spoke to Josh he said its most likely the firmware but the V3 reads vacuum still. Ill prob be upgrading soon anyways.
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    4. 10-15-2013, 08:11 PM #29
      marcvtec is offline Member
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      My p3 digital gauge is minus 22 at idle FYI
      Cobb tuned, spec2+, wavetrac, DCI, ARdp's, AA fmic, forge DV's, M3 links & Sways, bbs lm's, bunch of exterior mods, and one happy BMW driver
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    5. 10-15-2013, 08:23 PM #30
      Tony@VargasTurboTech is offline Guest Vendor
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      Click here to enlarge Originally Posted by marcvtec Click here to enlarge
      My p3 digital gauge is minus 22 at idle FYI
      as it should be
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    6. 04-04-2016, 12:19 PM #31
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      Old thread but I am running into an issue reading back the boost parameter with my COBB V2.
      My reading is between -12 and -6 psi. Car drives like a raped ape and I can see that my boost targets get hit.
      Mean ABS boost reads +32psi. Is this a sensor issue or a Cobb issue?
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    7. 04-06-2016, 04:05 PM #32
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      Click here to enlarge Originally Posted by hifidawg09 Click here to enlarge
      Old thread but I am running into an issue reading back the boost parameter with my COBB V2.
      My reading is between -12 and -6 psi. Car drives like a raped ape and I can see that my boost targets get hit.
      Mean ABS boost reads +32psi. Is this a sensor issue or a Cobb issue?
      Unfortunately you will not find too much Cobb support these days on the N54.

      I don't know if it's a sensor issue but I'd say try another tune and if it still happens you know it's a sensor.
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