ISX15 CM2250 IMAP sensor erratic, intermittent or incorrect

[zyNoT]

(07-21-2017 )Rawze Wrote:  

(07-21-2017 )zyNoT Wrote:  2012 Peterbilt 386

Maybe this helps...
http://rawze.com/forums/showthread.php?t...05#pid3505

I've actually taken a look at that post, but the ECM isn't losing voltage to itself.
It's almost like the ECM says "okay, you're way off here so I'm ignoring you" to the intake manifold pressure sensor, because it also monitors temperature and that parameter still shows a consistent value. So my guess is the sensor has consistent power, however the turbo speed sensor shows voltage but the speed drops to 0 every few seconds at idle which is strange in my mind unless someone here would say I'm barking up the wrong tree.