LMM: No idea what tuning I got

[ndxt]

Hey guys, noob here, got an 07 lmm with turbo back straight exhaust, doesn't seem to wild as far as power, but pulls my 34' fifth wheel better than the 08 I had for work. I would really like to know what kind of tuning I have in it, or if I want to change it, how would I go about it. The dealer can't get find the original owner, and won't give me his #. any questions I'll be happy to try and answer.

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[bevi]

I think the only thing to do is call the owner like you said but they wont help you out so your kida s.o.l . Does the truck have a dsp switch mountd anywhere? If you cant find out and really wana know buy a programmer and have the dealer reflash your ecm so its back to stock then you can put what you want into it. I know that wasnt alota info but hope it helps.

 

[crazycrew]

What he said!! That's really all you can do! I had some unknown canned tuner in mine and the original owner no longer had the hand held. I got the dealer to flash it for me then went about my merry way.

 

[ndxt]

There is a little red toggle switch down by the brake release I can't figure out what its for. if I have them reflash it is it going to cause issues with dpf deleted?

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[DieselDummy]

flip and see if the power changes, may be a dsp2.

 

[ripmf666]

There is a little red toggle switch down by the brake release I can't figure out what its for. if I have them reflash it is it going to cause issues with dpf deleted?

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Yes if the tune on it has the dpf deleted and they reflash it to stock you might throw codes.

 

[Dirtymaxx03]

Perfect excuse to get some good tuning from a reputable tuner! Ripmf can hook it up.

 

[05smoker]

Yes if the tune on it has the dpf deleted and they reflash it to stock you might throw codes.

There is no "might" to it. If the dealer reflashes and no dpf, hello limp mode.

 

[ripmf666]

There is no "might" to it. If the dealer reflashes and no dpf, hello limp mode.

That's why I left the might Ed. Only heard of one or two that did not limp from it.

 

[ripmf666]

Perfect excuse to get some good tuning from a reputable tuner! Ripmf can hook it up.

We're not offering any tunes til the rest of the pre tuned ecm's we sold and tune orders are filled.

 

[GMC_2002_Dmax]

If you have any tuning questions please don't hesitate to ask.

I can take care of whatever you need.

Just click the link below in my signature.