Towbarman25 here. I have an issue with a Caterpillar Avert engine. It came in running rough. Used a Snap On scanner to help me trouble shoot it. Shows Boost pressure sensor bad. Changed it out. Still have to same issue. The engine also had a bad voltage regulator and changed that out. Not sure what else to check/change. Had the Truck for about 4 months now, unit is on my case for not getting it fixed. Any information would be appreciated. Thanks