2015 duramax lml

[2015 lml 3500 dually]

I live in louisville ky, but I can go any place preferably closer to ky

 

[2015 lml 3500 dually]

Where is the closest place?

 

[TheBac]

The first three codes all have a bad ECM or chafed wire harness as a possible cause. The last air temp code might be ECM or wiring related, but rather points toward a dirty intake/filter (I know -- too easy). Do any of the harnesses coming into the ECM show any rub-thru at all??

 

[2015 lml 3500 dually]

They have already changed the ecm, all the sensors, the wiring measurements are good according to the electricians, the air, oil and diesel filters are new

 

[2015 lml 3500 dually]

these days i plan to go to florida, anyone on the way that can help?