overboost/limp mode due to bigger exhaust?
Duramaster,
So when I put my 4" exhaust on my 01' and pulled for the first time, I hit a hill and about half way up she went into limp mode with the SES light on. Long story short, code pulled was an overboost code. Dealership said due to the larger exhaust and intake (airaid). Said there was nothing they could do about it, but said maybe an 02' "reflash" would take care of it. JK of Kennedy diesel suggested his custom tuning, which I really like the sound of, but of course with 4 kids money is tight for MY toys! Just wondering what your expirienced take is on my problem. Thanks for any help.
Shed
01' LB7 2500 HD ext.cab, auto, 4" magnaflow, airaid intake, Mag-Hytec tranny pan, all Amsoil, Bilsteins.
In pusuit of the perfect camper pulling rig....
05'-30' Pilgrim 5th wheel
Always on the road headin for a campsite!