LLY problems

[cdaddy]

I recently had a guy install LLY on my 2005 duramax and the oil pressure gauge quit working as well as the battery not charging warning coming on. The battery light on the dash was staying on as well. He doesn't seem to know what is wrong. Does anyone have any idea what the problem could be. Alternator was fine and no warning lights before he added the program and put a 2 way switch on. Batter is now flat. I need help.

[GMPX]

Did he use your stock (factory) file to build the modified tune from? This is important, there is no one size fits all for the Duramax.

Cheers,
Ross

[beach_33]

i would be more willing to bet that some of the pins came out of the ecm plug when installing the what sounds like a dsp switch