A buddy of mine has a lbz and has been going thru the mass air flow sensor like crazy. After going thru two i thought is was the edge attitude doing it. So i took that off and he has been running it stock for four months and no issue. Now racing/pulling season is starting a problem has showed back up. We figured that it only blows the sensor out when motor is under a load since everytime it has mess up is when he is pulling his trailers which weigh 10k. Anyone have any ideas why its doing this? Truck is all stock other than the s&b intake,and exhaust.