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Thread: MAP Sensor Question

  1. #1

    Default MAP Sensor Question

    Finally got my car moving down the road. Taking datalogs for short periods of time and going back over everything, I noticed my MAP sensor values are all over the place (between 23 kPa & 92 kPa). I have everything correct in the EFI software, but I noticed my offset is at 2.00 psig with the GM 12592525 MAP sensor. Anyone know why or if that may have gotten changed accidentally?

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
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    Quote Originally Posted by Hoyt05 View Post
    Taking datalogs for short periods of time and going back over everything, I noticed my MAP sensor values are all over the place (between 23 kPa & 92 kPa).
    I don't understand. The MAP sensor value is supposed to change while driving at different load points.

    I have everything correct in the EFI software, but I noticed my offset is at 2.00 psig with the GM 12592525 MAP sensor. Anyone know why or if that may have gotten changed accidentally?
    If you didn't program that, change it back to zero.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: Dominator MPFI & DIS, A/C, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/X-pipe/shorty headers, 100HP progressive dry direct-port NOS, 160A 3G alternator, Optima Red battery, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

  3. #3

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    I understand it should change, but I felt like that's a huge range. Maybe I'm wrong? And okay I will reset it to zero. Thanks for the response!

  4. #4
    Join Date
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    Location
    Connecticut
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    Quote Originally Posted by Hoyt05 View Post
    I understand it should change, but I felt like that's a huge range. Maybe I'm wrong?
    Not if we're referring to idle, cruise, deceleration, acceleration & WOT.

    And okay I will reset it to zero. Thanks for the response!
    You're welcome.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: Dominator MPFI & DIS, A/C, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/X-pipe/shorty headers, 100HP progressive dry direct-port NOS, 160A 3G alternator, Optima Red battery, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

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