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GM 1 bar MAP voltage/pressures

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Old 08-16-2015, 08:57 PM
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Default GM 1 bar MAP voltage/pressures

Does anyone know where I can fine a pressure vs voltage table for the lsx engine 1-bar MAP sensor? (PN 16212460) need the info for megasquirt tuning calibration.
Thank you in advance
Old 08-17-2015, 11:18 AM
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Damn, man. You're not even trying. google is your friend

http://www.aa1car.com/library/map_sensors.htm
Old 08-17-2015, 11:42 AM
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Originally Posted by Pop N Wood
Damn, man. You're not even trying. google is your friend

http://www.aa1car.com/library/map_sensors.htm
Believe me I googled the crap out of it. Your link is for the only 90s style MAPs, Im working with the newer LS style. Different readings all together.
Old 08-17-2015, 12:31 PM
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Most of the MAP curves are just straight lines going from 0 to 5 V. The datasheets plot "typical" values that look like they were drawn with a crayon anyway. I'm not sure how much difference it will make if you are off by a bit at the extremes.

Hard to believe someone doesn't have what you want on a megasquirt forum. Worst case just hook up a vac gauge and measure your own curve. You can check with the local weather station to get the current barometric pressure for your on the day you do your measurements.

Or just map a quarter volt as zero pressure and 4.9 as 15 psi and call it good.

Good luck. If nothing else your thread got bumped.
Old 08-17-2015, 12:37 PM
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Thank you, I might just measure myself if no one has already done it



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