ok, here is the deal....got a 06 rcsb 5.3
i got a superchips handheld and tuned my stock pcm to the 93 tune... drove on that tune for bout a year

got a buddie tune another pcm with hp tune and when we swapt the pcm's i took the stock one off with the superchips tune still on it.

well, i decided to put the stock pcm back in so i could flash it back to stock so i could sell the superchips tuner....so i put the stock pcm with the 93 tune back in and i plugged in the superchips and it wont even come on.... what is going on?

both pcms are mapped and tuned to my truck using the same vin# and so on so changing them should just be a plug and play...but why cant i get the superchips to work so i can get my stock pcm back to "stock"???

any help guys!!!!

 

Does the superchips beep when you plug it into the OBD port?

 

check your cig lighter fuse under the hood

 

no beeps, nothing.

really the cig fuze? ur not f*#kin with me huh

 

Cig lighter fuse.

 

wow, that bogels my mind. the cig lighter? ha, but that has nothing to do with tuneing of the truck....oh well, i'll check it.

 

what they said.

 

Thanks guys....this is the reason i love this site and AM ADDICTED to it. great people. great info. i'll check it when i get home and go from there!

 

Did you give it a try? just woundering.

 

the OBD port runs off the cig fuse, if you haven't figured that out yet.