ISM500 Barometric Ambient Air Sensor
06-22-2021, (Subject: ISM500 Barometric Ambient Air Sensor ) 
Post: #1
ISM500 Barometric Ambient Air Sensor
I have a 2003 Pierce fire/ladder truck that shows barometric ambient air temp sensor bad. Everything I have read says its located around ecm/fuel pump area. I cannot find this sensor at all. Simple fix if i can find. One rep said it's older style sensor that is held on with 2 6mm bolts above fuel pump. Cummins sent a 2897331. Any suggestions?
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ISM500 Barometric Ambient Air Sensor - mayhem1 - 06-22-2021



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