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Old Mar 12, 2018 | 06:39 PM
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Torque baro reading

How accurate is this reading? I either have a problem with the reading my PCM puts out or with torques interpretation of that reading. I am In the Denver area so somewhat high altitude. Torque reads anywhere from 11.8-12.2 psi which doesn’t match the current weather report of pressure nor does it translate to a proper altitude reading.
 
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Old Mar 12, 2018 | 07:46 PM
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Your baro is reading in PSIA while the weather report is probably in inches of mercury, InHg. At 1900ft elevation I read about 13.8psia usually. The current pressure in Denver is 30.14InHg according to my weather app and I’m assuming that’s a sea level reading which would equate to around 24.7InHg at 5000 ft, which is roughly 12.1psia.
 
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Old Mar 12, 2018 | 07:59 PM
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Yes. Pressure here is usually around 30.2 inHg which converts to 14.8 psi. That’s not close to what the torque reading is.
 
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Old Mar 12, 2018 | 08:05 PM
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I’m pretty sure the weather is giving a sea level reading.
 
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Old Mar 12, 2018 | 08:07 PM
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Okay. I’m more confused now. It gives Denver atmospheric pressure at sea level??
 

Last edited by milehi_350; Mar 12, 2018 at 08:59 PM. Reason: Mistake
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Old Mar 12, 2018 | 09:08 PM
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Originally Posted by milehi_350
Okay. I’m more confused now. It gives Denver atmospheric pressure at sea level??
Either that, or you have one hell of a high pressure system moving through. What do MAP and EPB read? They shoud be the same as baro KOEO.
 
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Old Mar 12, 2018 | 09:12 PM
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Thanks Brad. I didn’t know that pressure readings are made at sea level then adjusted for altitude.
 
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Old Mar 12, 2018 | 09:14 PM
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Originally Posted by The Brad


What do MAP and EPB read? They shoud be the same as baro KOEO.
They are all within .3
 
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Old Mar 13, 2018 | 08:17 AM
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Originally Posted by milehi_350


They are all within .3
Bingo... that means all is well.
 
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