so just tuned a truck 08 lmm had the base tune built a dsp 5 loaded it in wouldnt switch i connected the scan tool to watch voltage an it say 4.99v and yes to dsp2???? wtf it says no dsp 5 but it has dsp 2???? any ideas anyone need this fixed asap
New switch did the trick :thumb: an there from efi live the one I had troubles with was hand made but after some further testing of the switch I took out it shouldn't be bad IMO but it didn't work so something is up with it
:hug: sweet man, glad to see you got it worked out!!
Throw that switch in the trash! Save the knob though...lol!