Slightly Modified 2006 CCSB LBZ w/ 609,675Km's (~385k Miles)
Joined
·
3,790 Posts
I have EFI live in my 06 LBZ.
I wish to re-Flash my ECM with a Stock GM Tune .
THAT In itself will not be an issue, have good friend - Diesel Tech at local GMC dealership.
What I'm curious about is that I have the 5 position Switch...and what do I need to do in regards to this..??
Leave it alone.?
Set at the EFI Stock Tune 1 and leave it.?
.....or does it and its accompanying wiring need to be removed a well..??
Much appreciated
Theo
I wish to re-Flash my ECM with a Stock GM Tune .
THAT In itself will not be an issue, have good friend - Diesel Tech at local GMC dealership.
What I'm curious about is that I have the 5 position Switch...and what do I need to do in regards to this..??
Leave it alone.?
Set at the EFI Stock Tune 1 and leave it.?
.....or does it and its accompanying wiring need to be removed a well..??
Much appreciated
Theo
