2005 Escape MAP Sensor Bad?

[MHardee1]

Intermittent stalling coming to stop.. I hooked up AutoTap (outside environment was approx 65 degrees F & sunny - nice day) to read and discovered:

Engine load at idle read 21%
Ambient Aire Temperature 23 degrees F (It was 65 really)
Barometric Pressure 99 (would this not be the same as 5 atmospheres?)

Does this indicate the MAP sensor has taken a dive?

Thanks for any help

[i_a_n112784]

You dont have a map sensor....you have a mass air flow sensor...and if the pressure readings are significantly different than the real ones (look up your weather on weather.com or something similar) then you have either a wire issue or a bad sensor.

[MHardee]

Originally Posted by i_a_n112784

You dont have a map sensor....you have a mass air flow sensor...and if the pressure readings are significantly different than the real ones (look up your weather on weather.com or something similar) then you have either a wire issue or a bad sensor.

Thanks for the reply.. the environment reading are very different as noted in my initial question.. I will continue to investigate the wiring and clean the MAF sensor first (the air filter was very dirty).

I heard a "buzzing" coming from the area around the MAF sensor when hooking up the scanner. It would start about 10 seconds after Key On Motor Off. Stopped when I reset the codes.

Any way to check it with a DVM?