switching to speed density
#1
TECH Fanatic
Thread Starter
switching to speed density
I have a 03 silverado 4.8 PCM and DBW and all the truck elecronics in my Chevelle. Last week I switched to LS1 but kept all the truck accessories and elecronics. I want to switch to an SD tune but when I do I cannot get the car to run in closed loop. I am using HPT, should I swap all my air and fuel tables from my MAF tune to the SD tune or will that not make a difference?
#4
TECH Fanatic
Thread Starter
I have a SD tune from the repository and I think it is from a 5.3. The 4.8 tune I have in the car is set to be really rich, it even puffs a little fuel smoke with the 5.7 in the car. I know I need it tuned after I install it but I would like to get it so the car will be driveable untill its tuned.