Question for the tuners

[Pampered-Z]

Can anyone do tuning on the Diesel trucks? I think you need a GM TECH II to make the changes. It that correct?

[foff667]

Can anyone do tuning on the Diesel trucks? I think you need a GM TECH II to make the changes. It that correct?

i know the software that I use currently doesnt support the late model diesels....not sure if jon's can support the earlier stuff but assume it does

[Pampered-Z]

Sorry, i should have been more clear. His truck is newer, 2002 - 2004.

[foff667]

Sorry, i should have been more clear. His truck is newer, 2002 - 2004.

unfortunatly at this time none of the big 3 tuning programs ie
hptuners
efilive
carputing

offer tuning options for the newer duramax diesels hptuners has been talking about doing it so we'll see but as of now its only the handhelds.

[Fasterthanyou]

Sorry, i should have been more clear. His truck is newer, 2002 - 2004.

unfortunatly at this time none of the big 3 tuning programs ie
hptuners
efilive
carputing

offer tuning options for the newer duramax diesels hptuners has been talking about doing it so we'll see but as of now its only the handhelds.
and the handhelds do very well with diesels.
Unlike gasoline engines, diesels don't have ignition issues. Just inject the fuel you want to burn and it'll do it. The transmission shifting is the only thing you might benifit but even then those HD trucks are very well optimized. I'd just go with a handheld programmer. They're easy enough to work with that anybody can use one.