Nothing to do with a c15, but i put a chip in my grandpa's rv with the c9 acert. Made a huge difference over stock in pulling steep hills while he is traveling, with about 1.5 - 2 mpg better
Hes trading his 2007 honda foreman (pretty rallied) and 2000 cash. Duramax has 10 inch lift, dual fox shocks all the way around, brand new 18 inch rims with 38 inch tires.
Anyone ever done a cab swap? Friend of mine found a duramax that was rolled, needs a new cab. Looking for some info on doing a cab swap for him to tell him if its worth the time or not.
Speed sensors are on the trans or the front suspension. My guess is that they are trying to do away with the parking brake wire, since everyone found a way around it.
Stick an air nozzle in the opening on the converter and cover the rest of the hole with a clean rag or something, and spray soapy water on the outside of the converter while looking for bubbles. Worked well for me.