I’m having a code come up on my truck it’s barometric pressure voltage high flash code 26 any body have any idea what it could be maybe a bad sensor and where exactly is the sensor located it’s on a cat c-13 2005 Peterbilt 378 there seems to be two sensors on the intake manifold but I have no idea if either of those two are it.
Barometric pressure sensor
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Perez700r, Feb 27, 2020.
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Not on intake, threaded into a tee fitting on front gear cover in front of air compressor. Check over wiring well, probably broken wire or rub in harness.
pushbroom, SAR, Rideandrepair and 2 others Thank this. -
could be a bad baro sensor or a broken wire. should be little 3 wires. the middle wire should be the ecm return volts. should not ohm out more then 5volts
Last edited: Feb 27, 2020
Rideandrepair Thanks this. -
So the sensor is on the timing cover somewhere?
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google and youtube
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Straight from this site.
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