rodman68
Full Access Member
Ok got me a 2003 duramax with the ZF6 speed transmission my question is every once in a while the truck will buck and snort. Seems like its only when its cold and either in first or second. I just got this truck not too long ago I have some fuel filters on order for it so not done that yet. I purchased a PPE economy tuner and on tune 1 and 2 at around 1900 to 2000 rpms it will surge like you stomped on the fuel then it will be ok after say 2100. I sent a email to PPE for any help on that issue so we will see if I can get any information from them. There is no trouble codes any more it did have one for the intake air heater that was just a blown fuse that I guess feeds the fuel filter heater also. Any help would be appreciated.